Smoky jungle frogs are voracious feeders, eating almost anything they can catch in an ambush. Their tadpoles are pretty vicious too. Only a small number of eggs laid will hatch in the large foam nest. The rest remain as food for the cannibalistic tadpoles. If feeling threatened, the smoky jungle frogs inflates itself like a balloon, rising up on all four legs and emitting a high-pitched scream. If they are not too big to be swallowed, their noxious skin toxins might deter predators. They are one of the largest frog species, found in South America's tropical swamps and marshes.

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