Living, relating to, or found in trees; spending much of one's life in trees.
From Latin arboreus (of or belonging to trees), derived from arbor (tree), plus the suffix -al (of or relating to). The word came into English through Old French and Latin scientific usage.
Arboreal animals have evolved some amazing features—sloths move slowly to save energy in trees, tree frogs have sticky toe pads, and squirrels have tails for balance. The word 'arboreal' instantly tells biologists: 'this creature's whole body is shaped by life in trees.'
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