Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

First, watch the video above. Don't think too much about it. Just press play, and let the frog scream send a shiver through your bones. Just a normal frog scream, right? That's what I thought, too.

Screaming or yelling is a natural reaction to a threat. One animal you’d likely never expect to hear this from, though, is a frog, which is more often associated with croaking. This is why rain frogs ...