Perched on a leaf in the rainforest, the tiny golden mantella frog harbors a secret. It shares that secret with the fork-tongued frog, the reed frog and myriad other frogs in the hills and forests of ...

That makes it one of the most poisonous animals on Earth. · All toads are frogs, but not all frogs are toads. · The smallest frog in the exhibit, the golden mantella, grows to be an inch long.