Not-so-Friendly Frogs! Frogs might be cute, but many frogs are poisonous. Three of those frogs are the golden dart frog, the corrobee frog and the red-backed poison frog.

The golden poison dart frog is deadly. Not only is it the world's most deadly frog, but it is also an endangered species.

The corrobee frog produces its own poison. It can be found in Australia. It does not live in other areas.

The red-backed poison frog is harmful to touch. Even though it is smaller than your thumbnail, it can still cause injury to humans.