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Original illustration of the Mountain Gorilla

Card 07 of 30

Mountain Gorilla

Gorilla beringei beringei

Endangered

The only great ape whose numbers are rising.

Size
4–6 ft tall · males over 400 lbs
Lifespan
More than 40 years
Diet
Leaves, shoots & stems — up to 40 lbs a day
Remaining↑
About 1,063 2018 census · per WWF-UK
The Mountain Gorilla in its habitat, an original illustration
Virunga Massif and Bwindi, East-Central Africa

Where it lives

Virunga Massif and Bwindi, East-Central Africa

Ranges stay general on purpose. Witness never publishes a location that could help someone find an animal already under pressure.

See it on the map

What threatens it

  • Poachers' snares
  • Human disease spillover
  • Habitat loss
  • Political instability

Life cycle

After a gestation of about eight and a half months, a newborn weighs under four pounds — half the weight of a human baby. Mothers have their first infant between ten and twelve, and nurse each one for over three years.

Field study of the Mountain Gorilla, an original illustration
Field study · Mountain Gorilla
The Mountain Gorilla observed in the field, an original illustration
Field observation

Field notes

Every passage carries the number of the source it came from. Nothing here is written from memory.

A mountain gorilla family moves through the cold high forest together: infants riding on backs, a silverback leading from the center.Source 1Source 2

Their hair is longer and thicker than any other gorilla's, grown for volcano slopes where nights can drop below freezing.Source 2

Each one can be told apart by its nose print, unique as a human fingerprint.Source 3

Their entire world is less than three hundred square miles, split between the Virunga volcanoes and the Bwindi forest.Source 2

The dangers are human-sized: snares set for other animals, and our illnesses — sharing most of our DNA, gorillas can catch flu, pneumonia, even Ebola.Source 4Source 3Source 1

In 1981, the Virunga population had crashed to 242, and extinction by the year 2000 was a serious prediction.Source 5

Then came four decades of daily protection: trackers walking to the gorillas every single morning, veterinarians treating snared animals where they lie.Source 4Source 6

The count now stands above one thousand and keeps rising — the only great ape population on Earth that is growing.Source 3Source 5

To witness the mountain gorilla is to see what protection, held steadily for a generation, can actually do.Source 4

The recovery holds only as long as the choices behind it — funded rangers, careful tourism, forests left standing.Source 3Source 4

The Mountain Gorilla drawn to scale beside a human figure
Scale study · beside a human figure

Did you know

A mountain gorilla's high-tannin diet stains its teeth almost black — the same compounds that darken tea and coffee.

This week’s act · for the Mountain Gorilla

Read the recovery story

Read WWF-UK's mountain gorilla profile: the census numbers, the threats, and how tourism and daily protection reversed the decline.

with WWF-UK

5 minutes · Worldwide · verified 24 August 2026

Witness records that this door was opened. It never claims the outcome.

Help & protection

  • Dian Fossey Gorilla Fund

    Daily protection

    Teams of more than a hundred expert trackers walk to the gorillas every day, directly protecting about half of Rwanda's mountain gorillas.

    View initiative ↗Verified 24 August 2026
  • Gorilla Doctors

    Wild veterinary care

    The only veterinary team treating wild eastern gorillas, monitoring nearly 800 habituated gorillas and freeing snared animals with a 98% survival rate.

    View initiative ↗Verified 24 August 2026

Sources & verification

Status
Endangered
Range (generalized)
Virunga Massif and Bwindi, East-Central Africa
Fact-checked
25 August 2026
Location review
generalized
Artwork
AI-assisted stylized illustration
  1. African Wildlife Foundation

    Mountain Gorilla

    Open source ↗Last accessed 24 August 2026
  2. Dian Fossey Gorilla Fund

    5 Things You Didn't Know About Mountain Gorillas

    Open source ↗Last accessed 24 August 2026
  3. WWF-UK

    Mountain gorillas

    Open source ↗Last accessed 24 August 2026
  4. Dian Fossey Gorilla Fund

    Protecting Gorillas

    Open source ↗Last accessed 24 August 2026
  5. Dian Fossey Gorilla Fund

    Mountain gorilla population still increasing: census results

    Open source ↗Last accessed 24 August 2026
  6. Gorilla Doctors

    Keeping Eastern Gorillas Healthy

    Open source ↗Last accessed 24 August 2026
  7. Dian Fossey Gorilla Fund

    5TF: Gorilla Infancy

    Open source ↗Last accessed 24 August 2026

Record last fact-checked 25 August 2026. The illustrations are original, drawn for Witness; they are not photographs.

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