Phyllobates

Phyllobates is a genus of poison dart frogs native to Central and South America. The genus contains seven known species, which are distributed from eastern Nicaragua to the Pacific coast of Colombia.

Phyllobates contains the most poisonous species of frog, the golden poison frog (P. terribilis). They are typical of the poison dart frogs, in that all species have bright warning coloration (aposematism), and have varying degrees of toxicity. Only species of Phyllobates are used by natives of South American tribes as sources of poison for their hunting darts. The most toxic of the many poisonous alkaloids these frogs contain (in glands in their skin) is batrachotoxin, alongside a wide variety of other toxic compounds. Some populations of Phyllobates lugubris in Central America are not known to be toxic.