As is now fairly well known, tropical frogs are being devastated by the chytrid fungus. The Gamboa Reserve has an enclosed area where many poison dart frogs roam. (They are fed, so are probably no longer poisonous.) They are highly variable in their patterns. Here we have two versions of the green-and-black poison dart frog (Dendrobates auratus).
Also here are two individuals of the strawberry poison-dart frog (Oophaga pumilio). These are examples of the variety called the “blue jeans morph”