Chimp [TESTED]
: They have flat faces with a prominent brow ridge and a mobile upper lip.
: Their arms are significantly longer than their legs, facilitating brachiation and knuckle-walking . : They have flat faces with a prominent
Chimpanzees ( Pan troglodytes ) possess several unique physical features that distinguish them as humans' closest living relatives: : They have flat faces with a prominent
: Allow for a precision grip on branches and tools. : They have flat faces with a prominent
