Tui De Roy / Galapagos fur seal (Arctocephalus galapagoensis) large territorial bull on volcanic rocks. South Coast Cerro Azul (Cinco Cerros), Isabela, Galapagos Islands, Ecuador, June.

Brent Stephenson / Weddell Seal (Leptonychotes weddellii) with wet fur after hauling onto a beach. Neko Harbour, Antarctic Peninsula, Antarctica, December.

Brent Stephenson / Crabeater Seal (Lobodon carcinophaga) hauled out on ice. Pleneau Island, Antarctica, January.

Fergus Gill / Grey seal pup (Halichoerus grypus) sleeping on a windswept beach. Scotland, Nov

Juan Carlos Munoz / Group of South American fur seals (Arctocephalus australis) swimming near the rocky shore. Puerto Deseado, Patagonia, Argentina, March 2008

Juan Carlos Munoz / South African fur seal (Arctocephalus pusillus pusillus) swimming near surface, Seal Island. False Bay, South Africa, July 2010

Alex Mustard / Silhouette of a New Zealand fur seal (Arctocephalus forsteri) diving underwater, Tasmania, Australia.

Claudio Contreras / Guadalupe fur seal (Arctocephalus townsendi) pup playing underwater, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, March

Claudio Contreras / Guadalupe fur seal (Arctocephalus townsendi) viewed from above, in the surf, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, February

Claudio Contreras / Guadalupe fur seal (Arctocephalus townsendi) pup swimming, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, April

Claudio Contreras / Guadalupe fur seal (Arctocephalus townsendi) pup portrait in shallow water, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, March

Claudio Contreras / Guadalupe fur seal (Arctocephalos townsendi) head portrait of pup, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, March