A small, agile ape with long arms and no tail, found in Southeast Asian rainforests, known for their acrobatic swinging through trees.
From French 'gibbon,' possibly from an Asian language. The exact origin is unclear, but the word entered European languages through early naturalists' accounts.
Gibbons are the only apes that are monogamous and sing duets with their partners—they have the most complex song structures of any land mammal. Their haunting calls can travel for a mile through the jungle to communicate with other groups.
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