Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: In birds this body contains magnetic material needed for navigation. Also called the epiphysis cerebri, it is largest in children, shrinking during puberty and calcifying with increasing age. In all humans it appears to play a major role in sexual development and sleep patterns. It may indirectly be the cause of Seasonal Affective Disorcer because it is photosensitive and increases the release of melatonin during the winter. FTP, identify this gland also known as the "third eye" and named for its pine-cone shape.
A:
Science