Using the lamprey, researchers analyzed the photosensory mechanism of the pineal organ, also called the pineal gland, in non-mammalian vertebrates and discovered a novel mechanism of pineal color ...

Researchers uncovered how zebrafish detect colors using photoreceptor cells in the pineal gland. The protein parapinopsin 1 (PP1) is inactivated by arrestin proteins Sagb and Arr3a, which switch roles ...

Newly discovered two-cell color detection of the pineal organ in the lamprey may be an evolutionary ancestor to the single-cell system found in fish and reptiles Most non-mammalian vertebrates have a ...