Repost: Scott Wilson Imagery // A very pregnant Tiger shark ! She will carry her young inside her body for up to 16 months, giving birth to between 10-80 pups around 50-80cm in length. If the pups can avoid being killed for their fins, liver oil , a fishermens trophy or in a lethal shark mitigation program, they will reach a length at least 5m and 900kg for females and 4m for males . Tigers inhabit tropical and temperate waters around the world and are generally a solitary nocturnal hunter. Tige

Competition is so fierce between sand tiger sharks that the pups devour each other in utero. | National Geographic