Do lizards have a 3rd eye? Is it true lizards have 3 eyes?
Do lizards have a 3rd eye?
Yes, many species of lizards have a third eye, also known as a parietal eye or pineal eye. This eye is located on the top of the head and is part of the lizard's pineal gland, which helps regulate their circadian rhythms and hormone levels. The third eye is often not well developed in adult lizards and may only be visible as a small scale or patch on the head. However, in some species, such as the tuatara, the third eye is fully functional and can sense changes in light and dark, helping the lizard to regulate its behavior and physiology.