“The pineal gland is the least understood gland of the endocrine system, and it was the last part of the endocrine system to ...

The pineal gland, or pineal body, is a small, flattened cone-shaped organ located in the lower-middle part of the brain. It is much more active in amphibians and lower mammals; in humans, it ...

Zebrafish are known to detect color and brightness with the pineal gland, which is part of the brain. How they do so is now being elucidated. We see color because photoreceptor cones in our eyes ...