What kind of animal is a chimpanzee? An updated explanation of its characteristics, ecology, and habitat.

What kind of animal is a chimpanzee? We will explain its characteristics, ecology, and habitat. Multiple groups of males and females can be seen at the zoo. Among the existing primates, they are the most closely related to humans and have the advantage of being able to use tools dexterously just like humans. However, they are unfortunately classified as endangered species.

What is a chimpanzee? About basic status

Chimpanzees are great apes classified in the genus Chimpanzee, in the order Mammalia, order Primates, and family Hominidae. The scientific name is Pan troglodytes. The body length can be 70 – 80 cm and the weight can be 30 – 50 kg. The list of information is as follows. Males are larger than females.

Japanese（和名）	チンパンジー
English（英名）	Chimpanzee/Common chimpanzee/Robust chimpanzee
scientific name(学名)	Pan troglodytes
classification（分類）	Mammalia、Primate、 Hominidae、Pan  哺乳綱、霊長目、ヒト科、チンパンジー属
IUCN Status(保全状況)	ENDANGERED
Length（体長）	70–80cm
Weight（体重）	30-50kg

What are the roots and origins of chimpanzees?

The roots (origins) of chimpanzees trace back to a common ancestor of great apes that lived in Africa approximately 7 to 10 million years ago. Chimpanzees are among the closest living relatives to humans, belonging to a lineage even closer to humans than gorillas are.

The evolutionary timeline of chimpanzees

Approximately 15 to 10 million years ago

Ancestors leading to modern apes lived in Africa.

The lineages of gorillas, chimpanzees, and humans diverged from the apes of this era.

Approximately 9 to 7 million years ago

The ancestor of gorillas diverged from the human-chimpanzee lineage.

Subsequently, a common ancestor of chimpanzees and humans existed.

Approximately 7 to 6 million years ago

The ancestors of chimpanzees and the ancestors of humans diverged.

From this point, the human lineage evolved toward bipedalism, while the chimpanzee lineage evolved through adaptation to life in the forest.

Types of chimpanzees

There are currently two species in the genus Pan (chimpanzees).

Chimpanzee (Pan troglodytes)

Habitat:

West Africa

Central Africa

Characteristics:

Lives in both forests and savannas

High capability for tool use

Forms complex social structures

Bonobo (Pan paniscus)

Habitat:

Forests of the Democratic Republic of the Congo

Characteristics:

Social structure is more peaceful than that of chimpanzees

Often forms female-centered groups

Strong bonds between group members

Genetic closeness to humans

Chimpanzees and humans share approximately 98–99% of their DNA.

Shared characteristics:

Ability to grasp objects with hands

Advanced social relationships

Emotional expression

Tool use

Learning ability

Cooperation among group members

Chimpanzees, in particular, possess intelligence that ranks among the highest in the animal kingdom.

About classification

The following subspecies of chimpanzees exist:

名前	English Name	Scientific name(学名)
チェゴチンパンジー	Central chimpanzee	Pan troglodytes troglodytes
ナイジェリアチンパンジー	Nigeria-Cameroon chimpanzee	Pan troglodytes ellioti
ケナガチンパンジー	Eastern chimpanzee	Pan troglodytes schweinfurthii
ニシチンパンジー	Western chimpanzee	Pan troglodytes verus Schwartz

Pan troglodytes troglodytes

Chego chimpanzees live in northern Angola, Gabon, southeastern Cameroon, the Republic of the Congo, the Democratic Republic of the Congo, Equatorial Guinea (continental region), and the Central African Republic. The skin on the body and limbs is black. The whole face is black.

Pan troglodytes ellioti

The Nigerian chimpanzee is a chimpanzee that can only be found in Cameroon and Nigeria, and its population is limited.

Pan troglodytes schweinfurthii

Chimpanzees live in western Uganda, northern and eastern Democratic Republic of the Congo, western Tanzania, eastern Central African Republic, Burundi, southwestern South Sudan, and Rwanda. It is also called the woolly chimpanzee or the eastern chimpanzee.

Pan troglodytes verus Schwartz

It is called the western chimpanzee or the masked chimpanzee. Distributed in Ghana, Guinea, Guinea-Bissau, Ivory Coast, Sierra Leone, southern Senegal, and southwestern Mali.

About habitat

Chimpanzees live primarily in Africa.

1. Geographic Distribution

Chimpanzees (Pan troglodytes) live only around the equator on the African continent (West and Central Africa).

Main Countries

West Africa: Senegal, Guinea, Sierra Leone

Central Africa: Côte d’Ivoire, Ghana, Nigeria

Central Africa: Cameroon, Gabon, Republic of the Congo

East Africa: Uganda, Tanzania

*They do not live in the Sahara Desert or southern Africa.

2. Habitat Types

Chimpanzees are highly adaptable to their environments and live in a variety of habitats, including the following:

Main Habitats

Tropical rainforest (most typical)

Deciduous forest

Savanna forest (mixed forest and grassland)

Riverside forest (gallery forest)

They can adapt to both fully forested and open environments.

3. Altitude

Lowlands to mid-mountain

Found from sea level to approximately 2,500 meters above sea level

(e.g., mountain forests in Uganda and Tanzania)

4. Habitat and Behavior

Living both in trees and on the ground

At night, they build nests (beds) in trees to sleep

During the day, they often walk and forage on the ground

Tends to prefer forests near water

5. Current Habitat

Due to deforestation and agricultural development, their habitat is rapidly shrinking

Habitat fragmentation makes it easier for populations to become isolated

feature is? What kind of creature is it?

Chimpanzees have a very high learning ability and are able to use tools such as hammers dexterously on the same level as humans. They live in groups of several to 20 individuals and are active during the day. At night, they rest on tree beds made of twigs and leaves. They prefer mountainous areas and tropical rainforests, and their home ranges can reach hundreds of square kilometers.

1. Appearance and Physical Characteristics

Body Length: Approximately 1-1.5m

Weight: Males 40-60kg, Females 30-45kg

Fur: Black to dark brown (thinner on face, limbs)

Very long arms (longer than legs)

No tail

Extremely strong, sometimes far exceeding the strength of an adult male.

2. Locomotion

Knuckle walking is the basic locomotion

Good at climbing trees and walking across branches

Can also walk bipedally (short distances) when necessary

3. High Intelligence

Tool Use

Fishing for termites with twigs

Cracking nuts with stones

High learning and memory abilities

Observing and imitating the behavior of others (cultural behavior)

Capable of simple language comprehension and symbol recognition

4. Sociality

Highly social animals

Live in groups of several dozen individuals

Horse groups have hierarchy, alliances, and roles

Express a wide range of emotions (joy, anger, sadness, empathy)

What is your personality like?

Chimpanzees are not shy even when they meet someone for the first time, and they quickly get to know each other. They also tend to live in groups and are highly disciplined animals.

1. Highly intelligent

Reads the situation and adapts behavior

Understands the positions and intentions of others to a certain extent

Performs deception and negotiation

Remembers past experiences well

“Thinks and acts” personality

2. Social and strong sense of community

Cares for its pack members

Cooperative hunting and defense

May rescue injured pack members

Builds trust through grooming

3. Aggression

Very aggressive in territorial and rank-and-file battles

May attack other packs in groups

Strongly expresses anger, fear, and excitement

Both gentle and cruel

4. Expresses emotions

Joy, sadness, anger, jealousy, and empathy

Expresses emotions through facial expressions, vocalizations, and gestures

Mourning behaviors have also been observed

5. Curious and playful

Exhibits a strong interest in new things

Learns through play

Plays with both children and adults

6. Individual differences are significant.

Gentle individuals

Dominant and short-tempered individuals

Sociable individuals

Solitary individuals

Each individual has a completely different personality.

What is the ecology like?

Chimpanzees are omnivorous, eating mainly leaves and fruits, but also seeds, flowers, leaves, bark, honey, insects, wild boars, monkeys, duikers, hyraxes, squirrels, and many other things. The gestation period is 227 to 239 days and sexual maturity occurs 8 to 11 years after birth. The lifespan is said to be around 60-70 years.

1. Social Structure (Very Important)
   Fission/Fusion Society

They form large groups of 20-100 individuals.

They do not always travel together.

They split into smaller groups (fission) depending on food availability, etc.

They reunite (fusion).

A highly flexible and sophisticated social structure.

2. Group Relationships

Male-dominated society

Males remain in their natal group.

Females migrate to other groups upon maturity.

A clear hierarchy exists.

Alliances and political maneuvering are observed.

3. Daily Rhythm

Diurnal

Morning: Foraging and migration

Daytime: Resting and grooming

Afternoon: Foraging and social activities again

Night: Building a treetop bed and sleeping.

4. Diet and Foraging Behavior

Omnivorous

Fruit is their staple food

Leaves, seeds, flowers, and bark

Insects (ants and termites)

Small mammals (sometimes cooperative hunting)

Tool-based food acquisition

5. Movement and Living Space

Uses both arboreal and ground habitats

Distance traveled per day: several kilometers

Has a territory and defends it collectively

6. Breeding and Rearing

Gestation period: Approximately 230 days (approximately 7.5 months)

Litter size: 1

Very strong mother-calf bond

Lactation and nursing can last for more than five years

Sexual maturity: 7-13 years

7. Lifespan

Wild: 30-40 years

Captive: May live for more than 50 years

Are there any natural enemies?

Chimpanzees’ natural enemies are larger carnivores such as leopards and lions. There are other humans too.

About Molting

Chimpanzee molting (the replacement of fur) differs from the “seasonal molting” seen in dogs and cats, where large amounts of fur are shed at specific times of the year. Instead, they generally undergo a process of gradual, continuous fur replacement throughout the year.

1. Gradual replacement throughout the year

Because chimpanzees inhabit the forests of tropical Africa, they do not undergo a distinct switch between winter and summer coats.

They maintain a year-round cycle of shedding old fur and growing new fur.

This mechanism is similar to the continuous renewal of human hair.

2. Times when molting is noticeable

While it varies by region, shedding can appear more noticeable during certain periods:

Dry season (low rainfall)

Humidity is lower.

It is easier to observe the condition of the skin and fur.

Consequently, shed fur may be more apparent.

Rainy season

Humidity is high, causing fur to lie flat against the body.

Conditions favor the growth of new fur.

Vocalizations

Chimpanzee vocalizations represent a highly complex form of communication within the animal kingdom. They utilize over 30 distinct types of calls and sounds for purposes such as communicating with group members, sounding alarms, expressing emotions, and maintaining social bonds.

Pant-hoot

This is the signature vocalization of the chimpanzee.

Characteristics:

A continuous sequence of sounds: “Hoo, hoo, hoo!”

A loud call that carries for hundreds of meters

Primarily produced by males

Functions:

Locating group members

Gathering the troop

Signaling one’s presence

Strengthening social bonds

Often heard in the morning or evening, this is a distinctive call that echoes through the forest.

Pant-grunt

Characteristics:

A low-pitched sound: “Kuh, kuh, kuh”

Conveys respect or submission toward another individual

Common situations:

When a younger individual approaches the troop leader

When confirming power dynamics

It serves a function similar to a “greeting” in chimpanzee society.

Alarm call

Characteristics:

A sharp, short scream

Alerts the group to danger

Triggers:

Snakes

Predators such as leopards

Unfamiliar objects

Chimpanzees are known to produce different calls depending on the type of danger.

Scream

Characteristics:

A high-pitched, loud scream

Situations:

During fights

When being attacked

When experiencing intense fear

Frequently used by young chimpanzees.

Play vocalization

Characteristics:

Sounds resembling soft laughter

Light, chuckling sounds: “Kuk-kuk”

Situations:

Playing with others

Interactions between young chimpanzees

*Unlike human laughter, chimpanzee “laughter” is primarily produced as a breathing sound during play or excitement.

Seasonal Activities

Since chimpanzees primarily inhabit the rainforests and woodlands of Africa, their activity patterns shift based on the alternation between wet and dry seasons, rather than the four distinct seasons found in Japan.

🌧 Wet Season (Approx. March–May & September–November; varies by region)

Activity Characteristics

Shorter foraging times due to abundant fruit

More time spent in the trees

Shorter travel distances for the troop

Main Behaviors

Searching for fruit

Tree climbing

Grooming with others

Play among the young

For chimpanzees, the wet season is a time of food abundance.

They consume large quantities of:

Figs

Palm nuts

Tree fruits

☀️ Dry Season (Approx. June–August & December–February)

Activity Characteristics

Decrease in available fruit

Increased consumption of leaves, bark, seeds, and insects

Greater travel distances to find food

Main Behaviors

More movement on the ground

Moving toward riverbanks or damp areas

Exploring wide areas as a troop

During the dry season, the ranges of different troops may shift as they seek food.

🌱 Spring (Start of the wet season)

Note: This differs from spring in temperate zones.

Activities:

Eating new buds and young leaves

Increased insect activity

Active child-rearing

Young chimpanzees, in particular, actively engage in:

Practicing tree climbing

Playing with others

Learning to use tools

🍂 Autumn (Period of abundant fruit)

In some regions, this is a time when fruit becomes plentiful.

Activities:

Increased fruit foraging

More interaction between troops

Active relationship-building among males

Walking Speed

Chimpanzees have evolved to move efficiently through forest environments; rather than walking on two legs like humans, they primarily move on all fours (using a “knuckle-walking” gait).

🚶 Normal Walking Speed

Approx. 3–5 km/h

When moving as a group, their speed is roughly the same as a human’s walking pace.

In the forest, they move at a leisurely pace while navigating around trees and obstacles.

🏃 Running Speed

Top speed: Approx. 30–40 km/h

They are capable of running very fast over short distances.

They display explosive speed when sensing danger, chasing after other group members, or during hunts.

Movement Speed ​​in Trees

Chimpanzees are adapted to life in the trees as well as on the ground.

Arboreal Movement

Moving quickly from branch to branch

Pulling their bodies up using arm strength

Crucial when searching for food (such as fruit)

Young individuals, in particular, are highly skilled at:

Climbing trees

Moving across branches

Swinging and hanging while moving

About Chimpanzee Infants

This article provides an easy-to-understand explanation of chimpanzee infants (babies/juveniles) from birth to development.

1. Birth

Litter size: Usually 1 pup

Birth weight: Approximately 1.5-2kg

Fur: Black to dark brown, with thin fur on the face and ears

Condition:

Eyes open

Firmly clings to mother

Clings to mother’s chest or belly immediately after birth

2. Infancy (0-3 years)

Completely dependent on mother

Nursing continues for approximately 3-5 years

Mothers always carry their infants or carry them on their backs

Emotions are communicated through crying and facial expressions

The mother-infant bond is very strong

3. Toddlerhood (3-7 years)

Gradually begins to play independently from their mother

Plays with other children and young adults, learning social skills

Learns tool use and food selection through observation and imitation

Returns to mother immediately in dangerous situations

4. Learning and Play

Play is “Practice”

Chasing

Tree Climbing

Throwing Objects

Carefully Observing the Behavior of Parents and Older Adults

Inheriting the Chimpanzee-Specific “Culture”

5. Juvenile to Adolescent Stages

Sexual Maturity:

Females: 7-10 Years

Males: 8-13 Years

Males Begin Learning about Ranking within the Group

Females Prepare to Move to Another Group

6. Harsh Survival

Losing their Mother Significantly Lowers Survival Rate

Poaching and Deforestation Often Cause Orphanages

Sometimes Raised in Orphanages

Are chimpanzees an endangered species?

Chimpanzees are animals designated as endangered species. When CITES came into force in 1975, it was listed on CITES Appendix II, and in 1977, the chimpanzee genus was listed on CITES Appendix I, so international trade is severely restricted. Their habitat is being destroyed due to deforestation and development, and they are also being overhunted for food.

Conservation Status (Official Assessment)

Chimpanzee (Pan troglodytes)

IUCN Red List: Endangered (EN/Vulnerable)

This means that the species is at very high risk of extinction in the wild.

Why is it Endangered?

The main causes are:

Habitat destruction

Logging of rainforests, farming, mining, and road development

Forest fragmentation, isolating populations

Poaching and bushmeat

Hunting for meat

Many cases involve the killing of parents to capture young animals

Illegal trade

Captivity for pets and exhibitions (internationally prohibited)

Diseases

Human-originated infectious diseases (such as Ebola)

Increased contact with humans increases the risk

Current Population Status

Wild population: Approximately 170,000-300,000 (estimated)

Drastic decline in some areas, with some populations on the verge of extinction

Can chimpanzees be kept as pets?

As mentioned above, chimpanzees are designated as an endangered species and are also listed in the Washington Convention, so international trade is strictly restricted. Therefore, breeding them is extremely difficult. We recommend viewing them at zoos and events. If you have time, please take a look at the facility information.

1. Legally, they cannot be kept as pets.
   International Regulations

Chimpanzees are listed in Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).

International trade is generally prohibited.

In Japan

Act on the Conservation of Species of Wild Fauna and Flora

Act on the Welfare and Management of Animals

It is virtually impossible for individuals to keep them as pets.

Keeping them is permitted only in zoos, research facilities, conservation facilities, and other institutions with strict government approval.

*Illegal keeping is subject to severe penalties.

2. Extremely dangerous from a safety standpoint

Adult animals have several times the strength of humans

Their bite force is also extremely strong, and fatal accidents have occurred worldwide.

They are emotionally intense and can suddenly become aggressive.

Even if they are tamed and raised, they often become uncontrollable as they grow.

Thinking they’re cute as babies is the biggest pitfall.

3. Ecologically, keeping them at home is impossible.

They are highly intelligent and social.

They naturally live in social groups of several dozen individuals.

In cramped environments, they are prone to severe stress, self-harm, increased aggression, and mental breakdowns.

4. Serious ethical issues.

Behind the scenes of the pet trade,

Parents are killed and only the young are taken.

This is a major cause of endangered species.

Keeping them as pets is
An act that threatens the survival of the species.