› added 5 years ago
62
Today I learned that a lot of reptiles, amphibians and some fish have a third eye. The Parietal eye is located on the top of their head and acts as a photocell sensor to detect light levels.
› added 5 years ago
62
Today I learned that a lot of reptiles, amphibians and some fish have a third eye. The Parietal eye is located on the top of their head and acts as a photocell sensor to detect light levels.