Living or dwelling in or on trees; adapted to life among trees.
From Latin arbor (tree) + -colous (suffix meaning dwelling in, from colere meaning to inhabit). The -ous ending makes it a formal adjectival form used primarily in scientific contexts.
Poison dart frogs are beautifully arboricolous—spending their entire lives in rainforest canopies and even raising tadpoles in tiny water pools formed in tree leaves, never touching the ground.
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