$toby base

Did you know that toads have a "third eye" for direct light-sensing

Bearded dragons and reptiles are so interesting. I had no idea they had a parietal eye until I watched a video about it.

I read about this when I used to own bearded dragons! I believe the parietal eye is mainly for detecting overhead predators. 

Reptiles are cold-blooded so they need to bask on hot surfaces to digest food properly. 

But this exposes them to overhead predators on sunny days. The parietal eye senses this danger.