Bull elephant seal exits the water to retake his position on the beach. He shows considerable scarring on his chest and proboscis from many winters fighting other males for territory and rights to a harem of females. Sandy beach rookery, winter, Central California.
Species: Elephant seal, Mirounga angustirostris
Location: Piedras Blancas, San Simeon, California
Image ID: 15458
Hammerhead sharks swim in a school underwater at Wolf Island in the Galapagos archipelago. The hammerheads eyes and other sensor organs are placed far apart on its wide head to give the shark greater ability to sense the location of prey.
Species: Scalloped hammerhead shark, Sphyrna lewini
Location: Wolf Island, Galapagos Islands, Ecuador
Image ID: 16271
A brown pelican preening, reaching with its beak to the uropygial gland (preen gland) near the base of its tail. Preen oil from the uropygial gland is spread by the pelican's beak and back of its head to all other feathers on the pelican, helping to keep them water resistant and dry.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 30326
Blue whale skeleton in Antarctica, on the shore at Port Lockroy, Antarctica. This skeleton is composed primarily of blue whale bones, but there are believed to be bones of other baleen whales included in the skeleton as well.
Species: Blue whale, Balaenoptera musculus
Location: Port Lockroy, Antarctic Peninsula, Antarctica
Image ID: 25604
Humpback whale lunge feeding on Antarctic krill, with mouth open and baleen visible. The humbpack's throat grooves are seen as its pleated throat becomes fully distended as the whale fills its mouth with krill and water. The water will be pushed out, while the baleen strains and retains the small krill.
Species: Humpback whale, Megaptera novaeangliae
Location: Gerlache Strait, Antarctic Peninsula, Antarctica
Image ID: 25648