Carcharodon megalodon is an extinct species of shark that lived during the Cenozoic era. This species is thought to be one of the largest and most powerful predators in history. Fossils records suggest that Carcharodon megalodon was cosmopolitan in distribution, but was often found at subtropical and temperate latitudes. It mostly preyed upon cetaceans, large whales, pinnipeds, and porpoises. Carcharodon megalodon eventually died out when it became too large to sustain itself on the available food.