An illustration of the giant Cretaceous-era frog, Beelzebufo ampinga, next to the largest living frog on Madagascar, the Mantydactylus ampinga. For nonpoisonous frogs, the trick to not becoming dinner ...

It's quick and easy to access Live Science Plus, simply enter your email below. We'll send you a confirmation and sign you up for our daily newsletter, keeping you up to date with the latest science ...