white shark, (Carcharodon carcharias), any member of the largest living species of the mackerel sharks (Lamnidae) and one of the most powerful and dangerous predatory sharks in the world. Starring as the villain of movies such as Jaws (1975), the white shark is much maligned and publicly feared. However, surprisingly little is understood of its life and behavior. White shark populations are frequently centred in highly productive temperate coastal waters (that is, waters characterized by...