poison arrow frog
any of approximately 180 species of New World frogs characterized by the ability to produce extremely poisonous skin secretions. Poison frogs inhabit the forests of the New World tropics from Nicaragua to Peru and Brazil, and a few species are used by South American tribes to coat the tips of darts and arrows. Poison frogs, or dendrobatids, are small and range from 12 to 19 mm (0.5 to 0.75 inch) from snout to vent in the minute poison frogs (Minyobates) to about 65 mm (2.6 inches) in the skunk frog (Aromobates nocturnus).
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