Sea otters mating. The male holds the female's head or nose with his jaws during copulation. Visible scars are often present on females from this behavior. Sea otters have a polygynous mating system. Many males actively defend territories and will mate with females that inhabit their territory or seek out females in estrus if no territory is established. Males and females typically bond for the duration of estrus, or about 3 days.
Species: Sea otter, Enhydra lutris
Location: Elkhorn Slough National Estuarine Research Reserve, Moss Landing, California
Image ID: 21606
Cardon cactus, near La Paz, Baja California, Mexico. Known as the elephant cactus or Mexican giant cactus, cardon is largest cactus in the world and is endemic to the deserts of the Baja California peninsula. Some specimens of cardon have been measured over 21m (70) high. These slow-growing plants live up to 300 years and can weigh 25 tons. Cardon is often mistaken for the superficially similar saguaro of Arizona and Sonora, but the saguaro does not occupy Baja California.
Species: Cardon cactus, Elephant cactus, Pachycereus pringlei
Location: La Paz, Baja California, Mexico
Image ID: 05498
Waves break on the coral reef and wash ashore at Clipperton Island, aerial photo. Clipperton Island, a minor territory of France also known as Ile de la Passion, is a spectacular coral atoll in the eastern Pacific. By permit HC / 1485 / CAB (France).
Location: Clipperton Island, France
Image ID: 32925
The French tricolor flag flies over Clipperton Island at sunset. Clipperton Island, a minor territory of France also known as Ile de la Passion, is a spectacular coral atoll in the eastern Pacific. By permit HC / 1485 / CAB (France).
Location: Clipperton Island, France
Image ID: 32902
San Diego city skyline at sunrise, showing the buildings of downtown San Diego rising above San Diego Harbor, viewed from Harbor Island.
Location: San Diego, California
Image ID: 27889
Panorama dimensions: 3497 x 12426
Banggai Cardinalfish. Once thought to be found at Banggai Island near Sulawesi, Indonesia, it has recently been found at Lembeh Strait and elsewhere. The male incubates the egg mass in his mouth, then shelters a brood of 10-15 babies in his mouth after they hatch, the only fish known to exhibit this behaviour. Unfortunately, the aquarium trade is threatening the survival of this species in the wild.
Species: Banggai cardinalfish, Pterapogon kauderni
Image ID: 08900
Clipperton Rock, a 95' high volcanic remnant, is the highest point on Clipperton Island, a spectacular coral atoll in the eastern Pacific. By permit HC / 1485 / CAB (France).
Location: Clipperton Island, France
Image ID: 32829
Desert bighorn sheep, female ewe. The desert bighorn sheep occupies dry, rocky mountain ranges in the Mojave and Sonoran desert regions of California, Nevada and Mexico. The desert bighorn sheep is highly endangered in the United States, having a population of only about 4000 individuals, and is under survival pressure due to habitat loss, disease, over-hunting, competition with livestock, and human encroachment.
Species: Desert bighorn sheep, Ovis canadensis nelsoni
Image ID: 14667
Oakum boys, juvenile king penguins at Salisbury Plain, South Georgia Island. Named 'oakum boys' by sailors for the resemblance of their brown fluffy plumage to the color of oakum used to caulk timbers on sailing ships, these year-old penguins will soon shed their fluffy brown plumage and adopt the colors of an adult.
Species: King penguin, Aptenodytes patagonicus
Location: Salisbury Plain, South Georgia Island
Image ID: 24405
Coconut palm trees on Clipperton Island, aerial photo. Clipperton Island is a spectacular coral atoll in the eastern Pacific. By permit HC / 1485 / CAB (France).
Location: Clipperton Island, France
Image ID: 32846
White southern right whale calf underwater, Eubalaena australis. About five per cent of southern right whales are born white due to a condition known as grey morphism and will gradually turn dark as they age. They are not albino (which is a complete lack of pigmentation). Sometimes referred to as "brindled", the white coloration is a recessive genetic trait and only lasts a few months. Typically, but not always, white calves will become much darker as they mature but will still be somewhat lighter than normal even as adults.
Species: Southern Right Whale, Eubalaena australis
Location: Puerto Piramides, Chubut, Argentina
Image ID: 35908
Devils Golf Course, California. Evaporated salt has formed into gnarled, complex crystalline shapes in on the salt pan of Death Valley National Park, one of the largest salt pans in the world. The shapes are constantly evolving as occasional floods submerge the salt concretions before receding and depositing more salt.
Location: Devils Golf Course, Death Valley National Park, California
Image ID: 15598