Natural History Photo of the Day

May 8, 2026
South American sea lions hauled out on rocks to rest and warm in the sun, Otaria flavescens, Patagonia, Argentina

South American sea lions hauled out on rocks to rest and warm in the sun, Otaria flavescens, Patagonia, Argentina

Species: South American Sea Lion, Otaria flavescens
Location: Puerto Piramides, Chubut, Argentina
Created: 2022-09-04
Image ID: 38274

Previous 100 Natural History Photo of the Day entries

May 7, 2026: Wood Stork in flight, Mycteria americana
May 6, 2026: Courting group of southern right whales, aerial photo. Mating may occur as a result of this courting and social behavior.
May 5, 2026: Caribbean reef shark
May 4, 2026: Courting Pair of Southern Right Whales, Aerial Photo, Sand is disturbed in the shallow waters of Golfo Nuevo from their socialization and mating activities. By permission of the Government of Argentina, Chubut, permit # 51 / 2025-SsCyA.
May 3, 2026: Full Moon Rises over the San Diego City Skyline and Mount Laguna, viewed from Point Loma, panoramic photograph
May 2, 2026: Black's Beach sea cliffs, sunset, looking north from Scripps Pier with Torrey Pines State Reserve in the distance
May 1, 2026: Aerial Panorama Photo of Swamis and Encinitas Coastline. Swamis reef and Self Realization Fellowship.
April 30, 2026: Bodysurfing sea lions in La Jolla, suspended in a breaking wave as they play together, Boomer Beach
April 29, 2026: Steller sea lions underwater, black and white, Norris Rocks, Hornby Island, British Columbia, Canada
April 28, 2026: Adams River sockeye salmon. A female sockeye salmon swims upstream in the Adams River to spawn, having traveled hundreds of miles upstream from the ocean.
April 27, 2026: A California Sea Lion Bodysurfing on a Big Wave at Boomer Beach in La Jolla
April 26, 2026: Full Moon over San Diego City Skyline, San Diego Convention Center
April 25, 2026: Anthias fishes school in strong currents above hard and soft corals on a Fijian coral reef, Fiji
April 24, 2026: Tiger shark close up view, including nostrils and ampullae of Lorenzini
April 23, 2026: Broad Tail of a Black Sea Bass in the California Kelp Forest showing distinctive unique black spots that allow researchers to identify individual giant sea bass.
April 22, 2026: Gray whale blowing at the ocean surface, aerial photo
April 21, 2026: Plastic Debris, Sorted and Cataloged for Study, Clipperton Island
April 20, 2026: San Evaristo at dawn, panoramic view, a small fishing town, aerial photo, Sea of Cortez, Baja California
April 19, 2026: Aerial panorama of Clipperton Island, showing the entire atoll. Clipperton Rock, the top of an old volcano, is at middle bottom. Clipperton Island, a minor territory of France also known as Ile de la Passion, is a small (2.3 sq mi) but spectacular coral atoll in the eastern Pacific. By permit HC / 1485 / CAB (France)
April 18, 2026: Desert Lily in bloom, Anza Borrego Desert State Park
April 17, 2026: Oceanside Pier aerial photo, Oceanside, California
April 16, 2026: Steller sea lions underwater, Norris Rocks, Hornby Island, British Columbia, Canada
April 15, 2026: San Clemente Island, aerial photo, steep cliffs and mountainous terrain on the south eastern shore of the island.
April 14, 2026: Full moon rising at night over the San Diego County Fair. Del Mar Fair at night.
April 13, 2026: Paraglider soaring at Torrey Pines Gliderport, sunset, flying over the Pacific Ocean.
April 12, 2026: Freediver photographing pelagic gelatinous zooplankton, adrift in the open ocean.
April 11, 2026: False Kiva at Sunset, Canyonlands National Park, Utah
April 10, 2026: Sunset and Coral trees, San Diego Embarcadero Marina Park.
April 9, 2026: Brandt's Cormorant in Flight
April 8, 2026: California sea lions, Coronado Islands.
April 7, 2026: Barrel cactus, brittlebush and wildflowers color the sides of Glorietta Canyon. Heavy winter rains led to a historic springtime bloom in 2005, carpeting the entire desert in vegetation and color for months.
April 6, 2026: Western gull, flying.
April 5, 2026: Tiger shark and underwater photographer
April 4, 2026: Aerial photo of Batiquitos Lagoon, Carlsbad. The Batiquitos Lagoon is a coastal wetland in southern Carlsbad, California. Part of the lagoon is designated as the Batiquitos Lagoon State Marine Conservation Area, run by the California Department of Fish and Game as a nature reserve
April 3, 2026: Male and female southern right whales mating underwater, Eubalaena australis. The male positions himself below the female and turns upside down, so the two whales are belly-to-belly and can mate. Sand has been stirred up by the courtship activities and the water is turbid.
April 2, 2026: Peregrine Falcon in flight, Torrey Pines State Natural Reserve
April 1, 2026: A California Brown Pelican flying over the Pacific Ocean, spreads its large wings wide to slow down as it banks, turns in midair, to land on seacliffs in La Jolla. Winter adult non-breeding plumage.
March 31, 2026: Spiny brittle stars (starfish) detail.
March 30, 2026: San Diego City Skyline at Sunset, viewed from Point Loma, panoramic photograph. The mountains east of San Diego can be clearly seen when the air is cold, dry and clear as it is in this photo. Lyons Peak is in center and the flanks of Mount San Miguel to the right.
March 29, 2026: California Brown Pelican flying over a breaking wave
March 28, 2026: Castle Geyser erupts, reaching 60 to 90 feet in height and lasting 20 minutes. While Castle Geyser has a 12 foot sinter cone that took 5,000 to 15,000 years to form, it is in fact situated atop geyserite terraces that themselves may have taken 200,000 years to form, making it likely the oldest active geyser in the park. Upper Geyser Basin.
March 27, 2026: Colorful Chironephthya soft coral colonies in Fiji, hanging off wall, resembling sea fans or gorgonians.
March 26, 2026: SCUBA Diver and Steller Sea Lions Underwater, underwater photographer, Hornby Island, British Columbia, Canada
March 25, 2026: Coastal brown bear cub, one and a half years old, near Johnson River. This cub will remain with its mother for about another six months, and will be on its own next year.
March 24, 2026: California Golden gorgonian in kelp forest.
March 23, 2026: Brown pelican soaring in flight with wings fully outstretched. The wingspan of the brown pelican is over 7 feet wide. The California race of the brown pelican holds endangered species status.
March 22, 2026: Garibaldi fish on kelp forest reef, underwater.
March 21, 2026: Steller sea lion underwater, Norris Rocks, Hornby Island, British Columbia, Canada
March 20, 2026: Blue shark underwater in the open ocean
March 19, 2026: Leather coral, Sinularia sp., Fiji
March 18, 2026: White pelican flying over Lake Hodges, Pelecanus erythrorhynchos
March 17, 2026: California sea lion, La Jolla
March 16, 2026: A giant black sea bass is an endangered species that can reach up to 8 feet in length and 500 pounds, often found amid the giant kelp forest, Once nearly fished to extinction and now thought to be at risk of a genetic bottleneck, the giant sea bass is slowly recovering and can be seen in summer months in California's kelp forests.
March 15, 2026: Lion female, Maasai Mara National Reserve, Kenya
March 14, 2026: Juvenile California Brown Pelican Flying over the Ocean, early morning light just after sunrise.
March 13, 2026: 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)
March 12, 2026: Vogelsang Peak (11516') at sunset, reflected in a small creek near Vogelsang High Sierra Camp in Yosemite's high country.
March 11, 2026: Mesa Arch spans 90 feet and stands at the edge of a mesa precipice thousands of feet above the Colorado River gorge. For a few moments at sunrise the underside of the arch glows dramatically red and orange.
March 10, 2026: Snow geese fly in huge numbers at sunrise. Thousands of wintering snow geese take to the sky in predawn light in Bosque del Apache's famous "blast off". The flock can be as large as 20,000 geese or more.
March 9, 2026: San Diego downtown skyline, viewed from Point Loma.
March 8, 2026: A kelp forest. Giant kelp grows rapidly, up to 2' per day, from the rocky reef on the ocean bottom to which it is anchored, toward the ocean surface where it spreads to form a thick canopy. Myriad species of fishes, mammals and invertebrates form a rich community in the kelp forest. Lush forests of kelp are found through California's Southern Channel Islands.
March 7, 2026: Unidentified gull in flight, La Jolla
March 6, 2026: Pacific torpedo ray Tetronarce californica, amidst huge schools of fish and baitfish, Farnsworth Banks, Catalina Island. This electric ray will shock the hell out of you if you are not careful.
March 5, 2026: Black Oaks below El Capitan, Quercus kelloggii, El Capitan meadow, Yosemite Valley
March 4, 2026: Clown Nudibranch, Triopha catalinae, Browning Passage, Vancouver Island
March 3, 2026: Mesquite Dunes sunrise, dawn, clouds and morning sky, sand dunes.
March 2, 2026: Brilliantlly colorful coral reef, with swarms of anthias fishes and soft corals, Fiji
March 1, 2026: American White Pelican in Flight, breeding adult with fibrous plate on upper mandible of bill, Lake Wohlford
February 28, 2026: Early Snow and Late Blue Ridge Parkway Fall Colors, Asheville, North Carolina
February 27, 2026: Rostrum and callosities of southern right whale, Eubalaena australis. Whale lice can be seen attached to the collosities, which are patches of thickened keratinized tissue, like calluses (thus the name). The pattern of callosities on a right whale are unique and serve as a way to identify individuals throughout their lifetime.
February 26, 2026: Humpback whales surface together during coordinated bubble-net feeding in Southeast Alaska. The whales use bubbles, sound, and movement to corral fish before capturing them in their open mouths.
February 25, 2026: San Diego City Skyline at Sunset, viewed from Point Loma, panoramic photograph. The mountains east of San Diego can be clearly seen when the air is cold, dry and clear as it is in this photo. Lyons Peak is in center and Mount San Miguel to the right.
February 24, 2026: California Brown Pelican In Flight, La Jolla California
February 23, 2026: Sea gull carries trash, a piece of aluminum foil
February 22, 2026: Photographing down the throat of a tiger shark with a Gopro on a selfie-stick
February 21, 2026: Favia maxima, a species of stony reef-building coral, Fiji
February 20, 2026: Anthias fishes school in strong currents above hard and soft corals on a Fijian coral reef, Fiji
February 19, 2026: A great white shark swims through the clear waters of Isla Guadalupe, far offshore of the Pacific Coast of Mexico's Baja California. Guadalupe Island is host to a concentration of large great white sharks, which visit the island to feed on pinnipeds and use it as a staging area before journeying farther into the Pacific ocean.
February 18, 2026: Plexauridae sea fan or gorgonian on coral reef. This gorgonian is a type of colonial alcyonacea soft coral that filters plankton from passing ocean currents
February 17, 2026: Ponto, South Carlsbad, morning surf.
February 16, 2026: Wildflowers bloom across Carrizo Plains National Monument, during the 2017 Superbloom
February 15, 2026: Portrait of an adult Southern Right Whale Underwater, Eubalaena australis, hovering over sand bottom on Golfo Nuevo, Peninsula Valdes. By permission of the Government of Argentina, Chubut, permit # 51 / 2025-SsCyA.
February 14, 2026: A humpback whale raises it fluke out of the water, the coast of Del Mar and La Jolla is visible in the distance.
February 13, 2026: Calico Bass. Kelp Bass, Paralabrax clathratus, Catalina Island
February 12, 2026: A young California sea lion pup hovers upside down, looking down curiously at the photographer below it, in the shallows of the sea lion colony at the Coronado Islands, Mexico
February 11, 2026: Western Grebes rushing across Lake Wohlford, exhibiting a spectacular courtship behavior in which the aquatic birds literally run across the surface of the water while their feet hit the water up to 20 times per second.
February 10, 2026: Broken Hill in soft pre-dawn light, overlooking the Pacific Ocean and Torrey Pines State Reserve. La Jolla and Mount Soledad in the distance.
February 9, 2026: Steller sea lion underwater, Norris Rocks, Hornby Island, British Columbia, Canada
February 8, 2026: Sheephead wrasse, Garibaldi and golden gorgonian, with a underwater forest of giant kelp rising in the background, underwater.
February 7, 2026: Adams River sockeye salmon. A female sockeye salmon swims upstream in the Adams River to spawn, having traveled hundreds of miles upstream from the ocean.
February 6, 2026: Winter Wildflowers Bloom in an Colorful Bouquet in Anza Borrego Desert State Park. Dune evening primrose (white) is mixed with sand verbena (purple) near Henderson Canyon Road. Sunrise light barely illuminating the flowers.
February 5, 2026: Spectacularly colorful dendronephthya soft corals on South Pacific reef, reaching out into strong ocean currents to capture passing planktonic food, Fiji.
February 4, 2026: Gray Whale Courtship Group, Aerial Photo, San Diego. Courtship during the southern migration, far to the north of the Mexican lagoons of Baja California where most gray whale births take place.
February 3, 2026: Pristine tropical reef with black coral, schooling anthias fishes and colorful dendronephthya soft corals, pulsing with life in a strong current over a pristine coral reef. Fiji is known as the soft coral capitlal of the world.
February 2, 2026: Great egret, White Egret, Ardea alba, Florida
February 1, 2026: Green sea turtle, West Maui.
January 31, 2026: Jardin du Luxembourg. The Jardin du Luxembourg, or the Luxembourg Gardens, is the second largest public park in Paris located in the 6th arrondissement of Paris, France. The park is the garden of the French Senate, which is itself housed in the Luxembourg Palace.
January 30, 2026: Enormous Porites lobata coral head, overturned by storm surge, Clipperton Island
January 29, 2026: California sea lion, thermoregulating.
January 28, 2026: California Brown Pelican flying over a breaking wave