Eastern chimpanzee | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Primates |
Family: | Hominidae |
Genus: | Pan |
Species: | P. troglodytes |
Subspecies: | P. t. schweinfurthii |
Trinomial name | |
Pan troglodytes schweinfurthii (Giglioli, 1872) |
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The eastern chimpanzee (Pan troglodytes schweinfurthii) is a subspecies of the common chimpanzee. It occurs in the Central African Republic, the Sudan, the Democratic Republic of the Congo, Uganda, Rwanda, Burundi, and Tanzania.
The 2007 IUCN Red List classified them as Endangered. Although the common chimpanzee is the most abundant and widespread of the non-human great apes, recent declines in East Africa are expected to continue due to hunting and loss of habitat. Because chimpanzees and humans are so physiologically similar, chimpanzees succumb to many diseases that afflict humans. If not properly managed, research and tourism also presents a risk of disease transmission between humans and chimpanzees.
Colin Groves of the Australian National University argues that there is enough variation between the northern and southern populations of P. t. schweinfurthii to be split into two subspecies instead of one; the northern population as P. t. schweinfurthii and the southern population as P. t. marungensis
This subspecies has been extensively studied by Dr. Jane Goodall at Gombe National Park.
Adult chimpanzees in the wild weigh between 40 and 65 kilograms (88 and 143 pounds). Males can measure up to 160 centimetres (63 inches) and females up to 130 centimetres (51 inches) in height. The chimpanzee's body is covered with coarse dark brown hair, except for the face, fingers, toes, palms of the hands and soles of the feet. Both of its thumbs and its big toes are opposable, allowing a precision grip.
The chimpanzee spends time both in trees and on the ground, but usually sleeps in a tree, where it builds a nest for the night. They once inhabited most of this region, but their habitat has been dramatically reduced in recent years.