The grey seal (Halichoerus grypus) is found on both shores of the North Atlantic Ocean where it hunts and feeds for two-thirds of its time. In Latin Halichoerus grypus means "hook-nosed sea pig". Grey seals are gregarious – sometimes forming large groups of several hundred, especially when they are moulting their fur in the spring. However, they are not very sociable and keep a distance between one another.