article: Poison dart frog
links: Adelphobates Central America Dendrobates Ameerega Neobatrachia Excidobates Phyllobates Secretion Animal Hyloxalus Endangered species Phyllobates terribilis Chordate Edward Drinker Cope Ranitomeya Amphibia Oophaga Polymorphism Epipedobates Silverstoneia Colostethus Anura Sexual selection South America Minyobates Dendrobatoidea