What distinctive feature identifies the Cotton-top Tamarin (*Saguinus oedipus*)?
Answer
Long, white sagittal crest of hair
The Cotton-top Tamarin is immediately recognizable due to a specific, prominent feature: a long, white sagittal crest of hair that extends from its forehead down to its shoulders. This species is native to a restricted area in northwestern Colombia. This visual marker, along with its small stature and high-energy lifestyle, firmly establishes its identity as a member of the *Saguinus* genus of New World monkeys, distinct from the Golden Lion Tamarin's mane.

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