Apes are a remarkable group of primates famous for their intelligence, flexible hands, expressive faces, complex social lives, impressive learning abilities, and close evolutionary relationship with humans. From enormous silverback gorillas walking through African forests to agile gibbons swinging high through the rainforests of Southeast Asia, apes display extraordinary diversity.
Living apes include gibbons, siamangs, orangutans, gorillas, chimpanzees, bonobos, and humans.
Scientifically, apes belong to the superfamily Hominoidea. They are divided into two major living families: Hylobatidae, the lesser apes or gibbons, and Hominidae, the great apes.
One of the easiest characteristics to notice is that living apes do not have external tails. However, being tailless alone does not define an ape. Apes also share distinctive evolutionary, skeletal, dental, and genetic characteristics.
Nonhuman apes occur naturally in Africa and Asia. Gorillas, chimpanzees, and bonobos are African, while orangutans and gibbons are Asian. Humans originated in Africa but now occur worldwide.
Apes occupy environments ranging from lowland tropical rainforest and swamp forest to mountain forest and woodland mosaics. Many species depend strongly on forests, although their lifestyles differ considerably.
Their diets are equally diverse. Fruit is important to many apes, while gorillas can consume enormous quantities of leaves and stems. Chimpanzees eat plants, insects, and occasional vertebrate prey. Gibbons depend heavily on fruit, while orangutans exploit hundreds of forest foods.
Apes are particularly famous for intelligence. Several species use tools, solve complicated problems, remember locations, learn socially, recognize individuals, communicate through gestures and vocalizations, and maintain long-term relationships.
Humans are themselves apes from a biological and evolutionary perspective. Humans did not evolve from any living ape species; instead, humans and other apes share extinct common ancestors.
This comprehensive guide explores ape facts, types, classification, evolution, habitat, diet, size, intelligence, strength, anatomy, tool use, communication, social behavior, reproduction, babies, lifespan, adaptations, ape vs. monkey differences, great apes vs. lesser apes, and conservation.
Ape Facts
| Feature | Information |
|---|---|
| Common Name | Ape |
| Scientific Group | Hominoidea |
| Animal Type | Mammal |
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Mammalia |
| Order | Primates |
| Infraorder | Simiiformes |
| Superfamily | Hominoidea |
| Main Living Families | Hylobatidae and Hominidae |
| Main Groups | Lesser apes and great apes |
| Natural Distribution | Africa and Asia for nonhuman living apes |
| Habitat | Primarily tropical and subtropical forests; some woodland and mountain habitats |
| Diet | Varies by species |
| Body Covering | Hair |
| Tail | No external tail |
| Reproduction | Live birth |
| Young | Infant |
| Intelligence | Highly developed |
| Communication | Vocalizations, gestures, facial expressions and touch |
| Famous Abilities | Climbing, social learning, problem solving and tool use in some species |
| Major Threats | Habitat loss, hunting, wildlife trade and disease |
What Is an Ape?
An ape is a primate belonging to the superfamily Hominoidea.
Living apes include:
- Gibbons
- Siamangs
- Orangutans
- Gorillas
- Chimpanzees
- Bonobos
- Humans
Apes differ greatly in size.
A small gibbon may weigh only several kilograms, while a large adult male gorilla can weigh well over 150 kilograms.
Despite this diversity, all living apes share evolutionary ancestry.
Scientific Classification of Apes
| Classification | Name |
|---|---|
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Mammalia |
| Order | Primates |
| Suborder | Haplorhini |
| Infraorder | Simiiformes |
| Superfamily | Hominoidea |
Living Hominoidea are divided into two families.
Hylobatidae
The lesser apes, consisting of gibbons and siamangs.
Hominidae
The great apes, consisting of orangutans, gorillas, chimpanzees, bonobos, and humans.
Types of Apes
The living nonhuman apes can broadly be organized into:
Gibbons
Small, agile Asian apes famous for swinging through trees.
Siamangs
The largest gibbons, recognizable partly by their inflatable throat sacs and powerful calls.
Orangutans
Large, mostly arboreal reddish-haired great apes from Southeast Asia.
Gorillas
The world’s largest living primates, native to Africa.
Chimpanzees
Highly social African apes famous for sophisticated tool use and cultural traditions.
Bonobos
Close relatives of chimpanzees living naturally in the Democratic Republic of the Congo.
Humans also belong biologically to the great-ape family.
Great Apes
The family Hominidae contains the great apes.
Living genera include:
- Pongo — orangutans
- Gorilla — gorillas
- Pan — chimpanzees and bonobos
- Homo — humans
Great apes generally possess relatively large brains, flexible behavior, and complex social or ecological strategies.
Lesser Apes
The family Hylobatidae contains the gibbons.
Despite the term “lesser,” these animals are not biologically inferior or less evolved.
The term mainly distinguishes them from the larger-bodied great apes.
Gibbons are extraordinary arboreal specialists.
Gibbons
Gibbons live in forests of South and Southeast Asia.
Their most famous adaptation is brachiation.
Brachiation means swinging from branch to branch using the arms.
Gibbons possess:
- Extremely long arms
- Powerful shoulders
- Curved fingers
- Lightweight bodies
- Exceptional agility
They can travel rapidly through the forest canopy.
Siamang
The siamang (Symphalangus syndactylus) is the largest living gibbon.
Siamangs possess a large inflatable throat sac.
This amplifies their calls, allowing them to produce powerful vocalizations that travel through forests.
Pairs often perform elaborate vocal duets.
Orangutan
Orangutans are large Asian great apes belonging to the genus Pongo.
They are famous for:
- Reddish-orange hair
- Long arms
- High intelligence
- Tool use
- Arboreal lifestyles
Wild orangutans occur naturally on Borneo and Sumatra.
They are among the most tree-dependent large mammals on Earth.
Gorilla
Gorillas belong to the genus Gorilla.
They are the largest living primates.
Wild gorillas occur naturally in equatorial Africa.
Their diet is primarily plant-based, although exact feeding patterns differ among populations.
Mature adult males develop silver-gray hair across their backs and are called silverbacks.
Chimpanzee
The common chimpanzee is Pan troglodytes.
Chimpanzees live naturally in Africa and are famous for:
- Tool use
- Cooperative behavior
- Hunting
- Social alliances
- Cultural traditions
- Complex communication
They live in flexible fission-fusion communities.
Bonobo
The bonobo is Pan paniscus.
Bonobos live naturally south of the Congo River in the Democratic Republic of the Congo.
They are closely related to chimpanzees but show important differences in:
- Anatomy
- Social organization
- Female relationships
- Conflict patterns
- Communication
Chimpanzees and bonobos are separate species.
Are Humans Apes?
Yes.
From a modern biological classification perspective, humans are great apes.
Humans belong to:
- Order: Primates
- Superfamily: Hominoidea
- Family: Hominidae
- Genus: Homo
- Species: Homo sapiens
Humans are therefore not merely “related to apes.”
Biologically, humans are one branch of the ape evolutionary tree.
In everyday language, however, the word “ape” is often used specifically for nonhuman apes.
Did Humans Evolve From Apes?
The answer requires an important distinction.
Humans are apes, but humans did not evolve from any modern ape species such as chimpanzees or gorillas.
Instead, humans and other living apes share extinct common ancestors.
For example, humans and chimpanzees share a relatively recent common ancestor compared with humans and gorillas.
Both lineages then continued evolving independently.
Modern chimpanzees are therefore evolutionary relatives—not human ancestors.
Ape Evolution
The evolutionary history of apes extends millions of years into the past.
Early hominoids evolved during the Miocene, when numerous ape species lived across Africa, Europe, and Asia.
Over time, different lineages emerged.
Some eventually led to:
- Gibbons
- Orangutans
- Gorillas
- Chimpanzees and bonobos
- Humans
Many other ape lineages became extinct.
Today’s species represent only a fraction of the ape diversity that once existed.
Ape vs. Monkey
One of the most common questions about primates is the difference between an ape and a monkey.
| Feature | Ape | Many Monkeys |
|---|---|---|
| Tail | No external tail | Many have tails |
| Shoulder Mobility | Extremely flexible | Generally less specialized |
| Body Position | Often more upright | Usually more horizontal |
| Brain | Generally relatively large | Varies |
| Arm Movement | Highly mobile | Varies |
| Group | Hominoidea | Several other primate groups |
The distinction is evolutionary rather than being based on only one feature.
Some monkeys do not have obvious tails, so “no tail” alone does not automatically make a primate an ape.
Do Apes Have Tails?
Living apes do not have external tails.
This includes:
- Gibbons
- Orangutans
- Gorillas
- Chimpanzees
- Bonobos
- Humans
Their ancestors lost the external tail during ape evolution.
Humans retain the coccyx, commonly called the tailbone.
Ape Anatomy
Apes possess several anatomical features associated with climbing, manipulation, and flexible movement.
Common characteristics include:
- Mobile shoulder joints
- Broad chests
- Flexible arms
- Grasping hands
- Forward-facing eyes
- Fingernails rather than claws
- Relatively large brains
- No external tail
Exact proportions vary greatly among species.
Ape Hands
Most apes possess highly capable hands.
Their fingers can:
- Grip branches
- Manipulate food
- Groom
- Carry objects
- Use tools
- Communicate through gestures
The thumb and finger proportions differ according to lifestyle.
Humans have particularly strong precision-grip abilities, while some arboreal apes possess long curved fingers optimized for climbing.
Ape Feet
Nonhuman apes generally have more grasping feet than humans.
Their feet can help grip branches.
Humans evolved feet specialized for habitual upright walking, producing major differences in:
- Toe arrangement
- Foot arches
- Heel structure
This is one reason humans are unusually efficient terrestrial bipeds.
Ape Arms
Long, mobile arms are particularly important in many ape species.
Gibbons have extraordinarily long arms for brachiation.
Orangutans use long arms to move among branches.
Chimpanzees and gorillas combine climbing abilities with terrestrial knuckle-walking.
Human arm proportions changed as our lineage became specialized for bipedal locomotion.
Ape Size
Ape body size varies enormously.
At one extreme are small gibbons.
At the other is the gorilla, the largest living primate.
Adult male gorillas can weigh more than 150 kg (330 lb) and sometimes considerably more.
This enormous range demonstrates how different ape lineages adapted to different ecological niches.
What Is the Largest Ape?
The gorilla is the largest living ape.
Adult male eastern gorillas can reach particularly impressive sizes.
However, an extinct ape called Gigantopithecus blacki was substantially larger than most living apes, although its exact body dimensions remain uncertain because scientists have mainly fossil teeth and jaw material rather than complete skeletons.
What Is the Smallest Ape?
The smallest living apes are gibbons.
Some species weigh only around 5–7 kg (11–15 lb) as adults.
Despite their small size, gibbons possess extremely powerful upper bodies relative to their weight.
Where Do Apes Live?
Nonhuman apes occur naturally in Africa and Asia.
African Apes
- Gorillas
- Chimpanzees
- Bonobos
Asian Apes
- Orangutans
- Gibbons
- Siamangs
Humans originated in Africa and subsequently expanded around the world.
Ape Habitat
Most nonhuman apes are strongly associated with forests.
Habitats include:
- Tropical rainforest
- Swamp forest
- Montane forest
- Lowland forest
- Bamboo forest
- Woodland
- Forest-savanna mosaics
Some populations tolerate more open environments than others.
Apes in Africa
Africa contains:
- Gorillas
- Chimpanzees
- Bonobos
These species occupy different regions and ecological niches.
Chimpanzees have the broadest habitat flexibility among the African nonhuman great apes and can occupy relatively dry woodland mosaics as well as rainforest.
Apes in Asia
Asia contains:
- Orangutans
- Gibbons
- Siamangs
These apes are strongly dependent on forest ecosystems.
Deforestation is consequently one of their most serious conservation threats.
What Do Apes Eat?
Ape diets vary considerably.
Common foods include:
- Fruit
- Leaves
- Shoots
- Stems
- Seeds
- Nuts
- Bark
- Flowers
- Insects
- Honey
Some species also consume vertebrate prey.
Are Apes Herbivores?
Some apes are predominantly plant-eating, but describing every ape simply as a herbivore would be inaccurate.
Gorillas consume overwhelmingly plant-based diets.
Orangutans and gibbons rely heavily on fruit and other vegetation.
Chimpanzees are omnivorous and sometimes hunt vertebrate prey.
Humans are naturally capable of eating both plant and animal foods.
Do Apes Eat Meat?
Some do.
Chimpanzees sometimes hunt:
- Monkeys
- Small antelope
- Other mammals
Bonobos also consume animal foods.
However, plant foods—especially fruit—remain extremely important.
Gorillas are not regular vertebrate hunters.
Do Apes Eat Bananas?
Apes can eat bananas, but the popular image of wild apes constantly eating cultivated yellow bananas is misleading.
Wild apes consume diverse natural foods.
Depending on species, these include:
- Wild fruits
- Figs
- Leaves
- Shoots
- Seeds
- Bark
- Flowers
Their natural diet is far more varied than popular cartoons suggest.
Ape Intelligence
Apes possess some of the most sophisticated cognitive abilities documented among animals.
Research has demonstrated abilities involving:
- Problem solving
- Memory
- Planning
- Tool use
- Social learning
- Object manipulation
- Cooperation
- Competition
- Numerical discrimination
- Understanding social relationships
Different ape species excel at different tasks.
Which Ape Is the Smartest?
There is no scientifically useful single ranking that captures every form of intelligence.
Humans possess uniquely elaborate language, cumulative culture, symbolic reasoning, and technological capabilities.
Among nonhuman apes, chimpanzees, bonobos, orangutans, and gorillas all demonstrate sophisticated cognition.
Gibbons also display complex learning and social abilities.
Intelligence is better understood as a collection of abilities than as one universal score.
Do Apes Use Tools?
Yes.
Tool use occurs in several ape species.
Chimpanzees are particularly famous for using:
- Sticks
- Stones
- Leaves
- Plant fibers
Orangutans also manufacture and use tools.
Wild gorillas have been observed using sticks for tasks such as testing water depth.
Tool behavior differs between species and populations.
Chimpanzee Tool Use
Chimpanzees demonstrate exceptionally diverse technology.
Different populations may:
- Fish for termites
- Crack nuts with stones
- Collect ants
- Extract honey
- Use leaf sponges
- Modify sticks
- Use tool sets
Some traditions are passed socially between generations.
Orangutan Tool Use
Orangutans use tools for tasks including:
- Extracting insects
- Accessing seeds
- Manipulating difficult foods
- Producing protective or functional objects from vegetation
Like chimpanzees, different populations can possess different traditions.
Gorilla Tool Use
Tool use is less commonly documented in wild gorillas but does occur.
Gorillas have been observed using branches or sticks to:
- Test water depth
- Stabilize themselves
- Navigate difficult terrain
These observations demonstrate flexible problem solving.
Ape Culture
Culture is not exclusive to humans if the term is broadly defined as socially transmitted behavioral traditions.
Chimpanzee populations provide particularly strong examples.
Different communities may possess different:
- Tools
- Grooming customs
- Feeding methods
- Gestures
Orangutans also show population-specific behavioral traditions.
Such behaviors can be transmitted through social learning.
How Do Apes Communicate?
Apes communicate using:
- Vocalizations
- Gestures
- Facial expressions
- Body posture
- Touch
- Grooming
Some species also communicate through:
- Chest beating
- Branch shaking
- Tree drumming
- Long-distance songs
Communication systems differ greatly between species.
Do Apes Talk?
Nonhuman apes do not naturally possess human spoken language.
They have complex communication systems, and captive individuals have learned various symbols or gestures in research environments.
However, these abilities should not be equated directly with the open-ended grammar and cumulative linguistic complexity of human language.
Ape Facial Expressions
Apes possess expressive faces.
Facial signals can communicate:
- Fear
- Submission
- Playfulness
- Aggression
- Excitement
- Social intentions
Human observers must be cautious because an expression resembling a human smile may have a different meaning in another ape.
Do Apes Laugh?
Several great apes produce laughter-like vocalizations during play.
These can occur during:
- Tickling
- Wrestling
- Chasing
- Social play
Such vocalizations suggest that the evolutionary foundations of human laughter may extend deep into great-ape ancestry.
Ape Social Behavior
Ape social systems are extremely diverse.
Gorillas
Often live in relatively cohesive groups centered around one or more adult males.
Chimpanzees
Live in fission-fusion communities.
Bonobos
Also have fission-fusion societies with particularly important female relationships.
Orangutans
Have a more dispersed social system.
Gibbons
Many live in small social units often centered on adult pairs and offspring.
There is therefore no single “ape social system.”
Ape Grooming
Grooming can serve both hygienic and social functions.
It helps remove:
- Dirt
- Dead skin
- Parasites
In highly social species, grooming can also:
- Strengthen relationships
- Reduce tension
- Reinforce alliances
- Reconcile conflicts
Chimpanzee grooming is particularly important in social politics.
How Strong Are Apes?
Strength varies dramatically among ape species.
A gorilla is enormously more massive than a gibbon.
Chimpanzees are powerful relative to humans of comparable body mass.
Orangutans possess extraordinary pulling and climbing strength.
However, popular internet claims giving precise strength multipliers—such as an ape being exactly 5, 10, or 20 times stronger than a human—are often unsupported.
Body size, muscle architecture, limb proportions, and the type of movement being measured all matter.
Gorilla Strength
Gorillas are the most physically massive living apes.
Large silverbacks possess:
- Powerful shoulders
- Long muscular arms
- Large hands
- Strong backs
- Substantial body mass
Exact maximum lifting strength has not been established through controlled testing.
Chimpanzee Strength
Chimpanzees possess impressive strength relative to body mass.
Research suggests chimpanzee muscle can generate roughly 1.3–1.5 times greater dynamic force or power per unit muscle mass than human muscle under comparable conditions.
Claims of five to ten times greater strength are generally exaggerated.
Orangutan Strength
Orangutans spend much of their lives supporting and moving their bodies through trees.
They possess:
- Long arms
- Powerful shoulders
- Strong hands
- Strong fingers
Their bodies are extremely well adapted for pulling and climbing.
How Do Apes Move?
Ape locomotion differs greatly.
Gorillas
Primarily knuckle-walk.
Chimpanzees
Knuckle-walk and climb.
Bonobos
Knuckle-walk, climb, and sometimes walk bipedally.
Orangutans
Climb and move carefully through tree canopies.
Gibbons
Specialize in brachiation.
Humans
Specialize in habitual bipedal walking.
This diversity makes apes particularly valuable for studying locomotor evolution.
What Is Brachiation?
Brachiation is arm-over-arm swinging beneath branches.
Gibbons are the masters of this locomotor style.
Their anatomy includes:
- Long arms
- Mobile shoulders
- Hook-like hands
- Lightweight bodies
These adaptations allow remarkably rapid canopy travel.
Can Apes Walk on Two Legs?
Yes.
Several nonhuman apes can stand or walk bipedally for limited periods.
Chimpanzees, bonobos, and gorillas sometimes do so.
However, humans are the only living ape specialized for habitual long-distance bipedal walking.
Can Apes Swim?
Swimming ability varies.
Most nonhuman great apes are not naturally specialized swimmers and may avoid deep water.
Individual chimpanzees and orangutans under managed conditions have demonstrated learned swimming behavior.
Humans are much more commonly capable swimmers, although swimming itself must also be learned.
Where Do Apes Sleep?
Most nonhuman great apes construct sleeping nests or platforms.
Chimpanzees, gorillas, bonobos, and orangutans arrange:
- Branches
- Leaves
- Other vegetation
into sleeping structures.
Nests may be built in trees or on the ground depending on species and circumstances.
Ape Reproduction
Apes are mammals and give birth to live young.
Most great apes reproduce slowly.
Typically:
- Pregnancy is relatively long.
- One infant is born.
- Twins are uncommon.
- Infants require extensive parental care.
- Juvenile development takes years.
Slow reproduction makes ape populations especially vulnerable to hunting and habitat destruction.
Baby Apes
A baby ape is generally called an infant.
Ape infants depend heavily on their mothers.
They learn through:
- Observation
- Play
- Exploration
- Social interaction
- Practice
Long childhoods provide time to develop complex ecological and social skills.
Ape Mothers
Maternal care is extremely important among apes.
Mothers provide:
- Milk
- Transportation
- Protection
- Warmth
- Social support
- Learning opportunities
Young chimpanzees, orangutans, gorillas, and other apes may remain associated with their mothers for years.
Ape Lifespan
Lifespan varies by species.
Large great apes can live for several decades.
Approximate patterns include:
- Gibbons: often several decades
- Chimpanzees: potentially 40–50+ years
- Gorillas: often 35–40+ years
- Orangutans: potentially 40–50+ years
Individuals under managed care can sometimes survive longer.
Ape Predators
Predators vary by region and ape species.
Potential natural predators include:
- Leopards
- Tigers in parts of orangutan range
- Large snakes
- Crocodiles in some circumstances
Young animals are generally more vulnerable.
Large adult gorillas have relatively few natural predators.
Humans are now the greatest threat to many ape populations.
Are Apes Dangerous?
Nonhuman apes are powerful wild animals.
Some can cause severe injuries if:
- Threatened
- Cornered
- Provoked
- Defending offspring
Wild apes should therefore be observed respectfully and according to conservation guidelines.
Their intelligence does not make them domesticated animals.
Can Apes Be Pets?
Apes are not suitable household pets.
They have complex needs involving:
- Social relationships
- Diet
- Space
- Enrichment
- Veterinary care
- Long-term development
Adults can also become extremely strong.
Wildlife trade in apes contributes to severe conservation and animal-welfare problems and is illegal in many jurisdictions.
Ape vs. Gorilla
A gorilla is an ape.
“Ape” describes the broader evolutionary group.
“Gorilla” describes one particular branch within that group.
Therefore:
All gorillas are apes, but not all apes are gorillas.
Ape vs. Chimpanzee
A chimpanzee is also an ape.
Chimpanzees belong to the genus Pan.
The word “ape” additionally includes:
- Bonobos
- Gorillas
- Orangutans
- Gibbons
- Humans
Ape vs. Orangutan
An orangutan is a great ape.
Orangutans belong to the genus Pongo and occur naturally in Asia.
Their long arms, reddish hair, and highly arboreal lifestyle distinguish them from African great apes.
Ape vs. Baboon
Baboons are monkeys, not apes.
| Feature | Ape | Baboon |
|---|---|---|
| Group | Hominoidea | Old World monkey |
| Tail | None | Present |
| Body Form | Ape-like | Monkey-like |
| Shoulder Mobility | Generally high | More limited |
| Examples | Gorilla, chimpanzee | Olive baboon, hamadryas baboon |
Ape vs. Primate
Every ape is a primate.
Not every primate is an ape.
The primate order also contains:
- Monkeys
- Lemurs
- Lorises
- Tarsiers
Therefore, primate is the broader category.
Great Ape vs. Lesser Ape
| Feature | Great Ape | Lesser Ape |
|---|---|---|
| Family | Hominidae | Hylobatidae |
| Examples | Gorilla, chimpanzee, orangutan, human | Gibbons, siamang |
| Typical Size | Generally larger | Smaller |
| Locomotion | Diverse | Strongly adapted to brachiation |
| Social Systems | Highly varied | Often smaller social units |
“Lesser” does not mean less important or primitive.
Ape vs. Human
Humans are biologically great apes.
However, modern humans differ from other apes in several major ways.
Humans possess:
- Habitual bipedalism
- Extremely large brains relative to body size
- Complex grammatical language
- Extensive symbolic thought
- Highly cumulative culture
- Advanced technology
These differences developed within one branch of the broader ape evolutionary tree.
Ape Adaptations
Different ape species possess different adaptations, but several broad characteristics are important.
Flexible Shoulders
Allow extensive arm movement.
Grasping Hands
Support climbing and manipulation.
Forward-Facing Eyes
Provide excellent depth perception.
Large Brains
Support flexible behavior and complex learning.
No External Tail
Characteristic of living hominoids.
Social Learning
Allows behaviors to spread between individuals.
Long Childhood
Provides time for learning.
Flexible Diets
Help many species respond to seasonal food availability.
Communication
Supports complex social relationships.
Are Apes Endangered?
Many nonhuman ape species and subspecies face serious conservation threats.
Depending on the species, conservation categories include Endangered and Critically Endangered.
Some populations have declined dramatically.
There is therefore no single conservation status for “apes” as an entire group.
Each species must be evaluated separately.
Why Are Apes Endangered?
Habitat Loss
Forests are cleared for:
- Agriculture
- Logging
- Roads
- Mining
- Settlements
- Plantations
Hunting
Apes may be killed for meat or because of conflict with humans.
Wildlife Trade
Infants can be captured for illegal trade.
Disease
Great apes can be vulnerable to diseases shared with humans.
Habitat Fragmentation
Small isolated populations may have difficulty maintaining genetic diversity.
Climate Change
Changing temperature and rainfall can alter forests and food availability.
Apes and Disease
Disease is a particularly important issue for great apes because of their biological similarity to humans.
Respiratory pathogens and other infections can potentially spread between people and apes.
Responsible tourism and research programs may use:
- Minimum viewing distances
- Masks
- Health screening
- Visitor limits
- Hygiene procedures
These measures help reduce disease transmission.
Why Are Apes Important?
Apes play important ecological roles.
Fruit-eating species can disperse seeds over considerable distances.
This contributes to:
- Forest regeneration
- Plant reproduction
- Genetic connectivity
- Ecosystem diversity
Large apes can also influence vegetation through feeding and movement.
Apes as Seed Dispersers
Many tropical plants depend on animals to transport seeds.
Apes eat fruit and later deposit seeds elsewhere.
Large-bodied species can swallow and transport seeds that smaller animals cannot handle effectively.
Protecting apes can therefore help preserve ecological processes that maintain forests.
Why Are Apes Important to Science?
Studying apes helps scientists investigate:
- Evolution
- Cognition
- Social behavior
- Communication
- Tool use
- Culture
- Anatomy
- Human origins
Comparisons among apes reveal which characteristics were inherited from ancient ancestors and which evolved more recently.
40 Interesting Ape Facts
- Apes are primates.
- They belong to the superfamily Hominoidea.
- Living apes have no external tails.
- Apes include great apes and lesser apes.
- Gibbons are lesser apes.
- Gorillas are great apes.
- Chimpanzees are great apes.
- Bonobos are great apes.
- Orangutans are great apes.
- Humans are biologically great apes.
- Nonhuman apes naturally occur in Africa and Asia.
- Gorillas are the largest living apes.
- Gibbons are the smallest living apes.
- Gibbons specialize in brachiation.
- Orangutans are highly arboreal.
- Gorillas primarily knuckle-walk.
- Chimpanzees also knuckle-walk.
- Nonhuman apes can sometimes walk upright.
- Many apes possess grasping feet.
- Apes have forward-facing eyes.
- They possess highly mobile shoulders.
- Several ape species use tools.
- Chimpanzees crack nuts with stones in some populations.
- Orangutans manufacture tools.
- Wild gorillas have also been observed using tools.
- Some apes have socially transmitted traditions.
- Chimpanzees show strong evidence of culture.
- Apes communicate through gestures.
- They also use facial expressions.
- Several great apes produce laughter-like play sounds.
- Great apes generally develop slowly.
- Ape infants depend on mothers for long periods.
- Many great apes build sleeping nests.
- Ape diets differ substantially between species.
- Some apes are primarily plant-eaters.
- Chimpanzees occasionally hunt vertebrates.
- Humans did not evolve from modern chimpanzees.
- Humans and other apes share extinct common ancestors.
- Many nonhuman apes are threatened with extinction.
- Protecting apes also protects important tropical forests.
Did You Know?
Humans are scientifically classified as apes.
This does not mean that humans descended from chimpanzees, gorillas, or any other modern ape.
Instead, imagine the ape evolutionary tree as a family tree with many branches.
One branch led toward modern gibbons.
Another eventually produced orangutans.
Other branches led toward gorillas and toward the lineage containing chimpanzees, bonobos, and humans.
The human branch then followed its own evolutionary history.
Modern humans and modern chimpanzees are therefore evolutionary relatives whose ancestral lineages diverged millions of years ago.
This distinction is one of the most important concepts for understanding ape evolution.
Frequently Asked Questions About Apes
What is an ape?
An ape is a primate belonging to the superfamily Hominoidea.
Are apes mammals?
Yes.
Are apes primates?
Yes.
Are apes monkeys?
No. Apes and monkeys are different branches within the primate evolutionary tree.
What animals are apes?
Living apes include gibbons, siamangs, orangutans, gorillas, chimpanzees, bonobos, and humans.
Are humans apes?
Yes. Humans are biologically classified as great apes.
Are gorillas apes?
Yes.
Are chimpanzees apes?
Yes.
Are orangutans apes?
Yes.
Are bonobos apes?
Yes.
Are gibbons apes?
Yes. They are lesser apes.
Are baboons apes?
No. Baboons are Old World monkeys.
Do apes have tails?
Living apes do not have external tails.
What is the largest ape?
The gorilla is the largest living ape.
What is the smallest ape?
The smallest living apes are gibbons.
Where do apes live?
Nonhuman apes naturally occur in Africa and Asia.
Do apes live in rainforests?
Many do, although some populations occupy montane forests, woodland, and forest-savanna environments.
What do apes eat?
Their diets include fruit, leaves, stems, seeds, nuts, insects, and other foods depending on species.
Are apes herbivores?
Some are primarily plant-eating, while others are omnivorous.
Do apes eat meat?
Some species do. Chimpanzees, for example, sometimes hunt vertebrate prey.
Do apes eat bananas?
They can, but wild apes eat much more diverse natural diets.
Are apes intelligent?
Yes. Apes demonstrate sophisticated cognition, learning, memory, and problem-solving abilities.
Do apes use tools?
Several ape species use tools.
Which apes use tools?
Chimpanzees and orangutans show especially extensive tool use, while tool behavior has also been documented in gorillas and other apes.
Do apes have culture?
Some ape populations possess socially transmitted behavioral traditions that researchers describe as culture.
Can apes talk?
Nonhuman apes possess sophisticated communication systems but do not naturally use human-like spoken grammatical language.
How do apes communicate?
They communicate using gestures, vocalizations, facial expressions, body posture, and touch.
Do apes laugh?
Several great apes produce laughter-like vocalizations during play.
How strong are apes?
Strength varies greatly by species. Gorillas possess enormous absolute strength, while chimpanzees and orangutans are powerful relative to body size.
Are apes stronger than humans?
Some nonhuman apes possess greater strength than humans in particular movements and relative to body mass, but simple universal strength multipliers are misleading.
Can apes walk upright?
Several nonhuman apes can walk bipedally for short periods.
Can apes climb trees?
Yes. Most nonhuman apes are capable climbers, although ability varies by species and age.
Can apes swim?
Most nonhuman apes are not specialized swimmers, although some individuals can learn to swim.
Where do apes sleep?
Many great apes build nests from branches and vegetation.
What is a baby ape called?
A baby ape is generally called an infant.
How long do apes live?
Many apes can live for several decades.
What animals eat apes?
Potential predators include leopards, large snakes, and other predators depending on species and location.
Are apes dangerous?
They can be. Large apes are powerful wild animals and can cause serious injuries when threatened.
Can apes be pets?
Nonhuman apes are not suitable household pets and are legally protected in many regions.
What is the difference between an ape and a monkey?
Apes belong to Hominoidea, lack external tails, and possess distinctive shoulder and skeletal anatomy. Monkeys belong to other primate lineages.
What is the difference between a great ape and a lesser ape?
Great apes belong to Hominidae, while lesser apes belong to Hylobatidae.
Is a gorilla stronger than a chimpanzee?
A large adult gorilla has substantially greater body mass and absolute physical power, although precise controlled strength comparisons are limited.
Did humans evolve from chimpanzees?
No. Humans and chimpanzees share an extinct common ancestor.
Did humans evolve from gorillas?
No. Humans and gorillas also share ancient common ancestry rather than a direct ancestor-descendant relationship.
Which ape is closest to humans?
Chimpanzees and bonobos are humans’ closest living evolutionary relatives.
Are apes endangered?
Many nonhuman ape species are Endangered or Critically Endangered.
Why are apes endangered?
Major threats include habitat destruction, hunting, illegal wildlife trade, disease, and habitat fragmentation.
Why are apes important?
Apes contribute to forest ecology, disperse seeds, influence vegetation, and provide important insights into primate evolution and cognition.
Conclusion
Apes are among the most sophisticated and diverse members of the primate order.
The group includes everything from small, acrobatic gibbons swinging rapidly through Asian rainforest canopies to enormous silverback gorillas traveling through the forests of Africa.
Chimpanzees create and use tools, maintain complicated alliances, hunt cooperatively, and pass behavioral traditions between generations.
Orangutans navigate enormous three-dimensional forest environments, remember seasonal food resources, construct sleeping nests, and use tools.
Gibbons have evolved extraordinary shoulders and arms that allow them to move through the canopy with remarkable speed and grace.
Gorillas demonstrate that immense physical power can coexist with complex family relationships, gentle social interactions, sophisticated communication, and impressive cognitive abilities.
Bonobos reveal another variation on great-ape society, with social relationships and cooperation structured differently from those of their chimpanzee relatives.
And humans represent another branch of this same evolutionary radiation.
Understanding this relationship does not mean that humans evolved from any living chimpanzee, gorilla, or orangutan. Instead, each modern ape lineage represents the surviving descendants of ancient populations that diverged over millions of years.
Modern apes therefore provide windows into both evolutionary history and the remarkable adaptability of primates.
Their similarities reveal characteristics inherited from common ancestors, while their differences show how evolution can transform anatomy, behavior, diet, locomotion, communication, and social organization.
Unfortunately, many nonhuman apes now face serious threats.
Deforestation destroys feeding and nesting habitat. Roads fragment forests. Hunting removes individuals from populations that reproduce very slowly. Illegal wildlife trafficking often kills adults while targeting infants. Disease transmission can devastate closely related great apes.
Protecting apes therefore requires far more than protecting individual animals.
It requires conserving large connected forests, reducing hunting and illegal trade, limiting disease transmission, supporting local communities, and preserving the ecological systems upon which apes depend.
These efforts benefit much more than apes.
As fruit eaters and seed dispersers, many apes help maintain tropical forests. Protecting their habitat simultaneously protects countless mammals, birds, reptiles, amphibians, insects, and plants.
From a gibbon swinging between branches to a chimpanzee manufacturing a tool and a gorilla carefully carrying an infant, apes demonstrate an extraordinary combination of intelligence, physical ability, social complexity, adaptability, and evolutionary diversity.
Studying them helps us understand some of the world’s most remarkable animals—and, because humans are part of the same evolutionary family tree, it also helps us understand ourselves.
