Animals & Nature
Gorilla
Members of the genus Gorilla — the large African great apes that include eastern and western gorillas and their subspecies.
This entry covers members of the genus Gorilla (eastern gorillas, Gorilla beringei, and western gorillas, Gorilla gorilla) and their subspecies.
Facts and references emphasize differences between species and subspecies where relevant rather than generalizing one measurement to all gorillas.
Quick facts
- The genus Gorilla is split into two species — the eastern gorilla (Gorilla beringei) and the western gorilla (Gorilla gorilla) — each of which includes multiple subspecies (for example, mountain gorillas and western lowland gorillas). ([worldwildlife.org](https://www.worldwildlife.org/resources/facts/what-do-gorillas-eat-and-other-gorilla-facts/?utm_source=openai))
- Eastern gorillas include the largest living primates (mountain gorillas are the largest gorilla subspecies), while body size and proportions vary by species and subspecies; males are substantially larger than females (strong sexual dimorphism). Do not generalize a single weight or height value to all gorillas — ranges differ by taxon and population. ([nationalgeographic.com](https://www.nationalgeographic.com/animals/mammals/facts/mountain-gorilla?loggedin=true&utm_source=openai))
- Gorillas are ground-dwelling apes with long arms and they move primarily by 'knuckle-walking.' They also construct sleeping platforms or 'nests' (ground or tree nests) and typically build a new night nest each day. ([nationalzoo.si.edu](https://nationalzoo.si.edu/animals/western-lowland-gorilla?utm_source=openai))
- Socially, gorillas live in groups (often called troops or bands) usually led by a dominant adult male ('silverback'); group size and composition vary between populations and species. The silverback mediates group decisions, protects the group, and leads movement and feeding. ([nationalzoo.si.edu](https://nationalzoo.si.edu/animals/western-lowland-gorilla?utm_source=openai))
- Conservation status varies by species and subspecies, but many gorilla taxa are listed as Endangered or Critically Endangered because of habitat loss, poaching, disease (including Ebola), and regional conflict; conservation actions have helped some populations but threats remain severe. ([iucn.org](https://iucn.org/news/species/201609/four-out-six-great-apes-one-step-away-extinction-%E2%80%93-iucn-red-list?utm_source=openai))
A surprising fact
Despite their large size and terrestrial habits, almost all gorillas build a new sleeping nest every night (some nest in trees, some on the ground) — nest construction is a regular, daily behavior used by researchers to estimate presence and density. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC10331904/?utm_source=openai))


