Grey Seal on South Monomoy Island
The Grey Seal (Halichoerus grypus, meaning "hooked-nosed sea pig") is found on both shores of the North Atlantic Ocean. It is a large seal of the family Phocidae or "true seals". It is the only species classified in the genus Halichoerus. Its name is spelled Gray Seal in the US, it is also known as Atlantic Grey Seal and the Horsehead Seal.