Search results for Sexual Dimorphism Male - Fem...

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California sea lion on drift kelp paddy, underwater. This adult female California sea lion was hanging out underneath a paddy of drift kelp, well offshore the coastline of San Diego, Zalophus californianus
California sea lion on drift kelp paddy, underwater. This adult female California sea lion was hanging out underneath a paddy of drift kelp, well offshore the coastline of San Diego.
Species: California sea lion, Zalophus californianus
Location: San Diego, California
Image ID: 38540  
Huge California Sea Lion Male Underwater, a bull, patrolling his breeding harem and territory, Coronado Islands, Mexico. His sagittal crest, the bony bump on his head that distinguishes adult male sea lions, is clearly seen. This particular sea lion bears an orange tag on his left foreflipper, probably as a result of rescue and release as a young sea lion years earlier, Zalophus californianus, Coronado Islands (Islas Coronado)
Huge California Sea Lion Male Underwater, a bull, patrolling his breeding harem and territory, Coronado Islands, Mexico. His sagittal crest, the bony bump on his head that distinguishes adult male sea lions, is clearly seen. This particular sea lion bears an orange tag on his left foreflipper, probably as a result of rescue and release as a young sea lion years earlier.
Species: California sea lion, Zalophus californianus
Location: Coronado Islands (Islas Coronado), Baja California, Mexico
Image ID: 38657  
La Jolla Cove and Point La Jolla at Dawn, waves blur into abstract white, pre-sunrise soft light
La Jolla Cove and Point La Jolla at Dawn, waves blur into abstract white, pre-sunrise soft light.
Location: La Jolla, California
Image ID: 38917  
Three Giant Black Sea Bass in a Courtship Posture, Hovering One Above the Other in Kelp at Catalina Island. In summer months, black seabass gather in kelp forests in California to form mating aggregations. Courtship behaviors include circling of pairs of giant sea bass, production of booming sounds by presumed males, and nudging of females by males in what is though to be an effort to encourage spawning, Stereolepis gigas
Three Giant Black Sea Bass in a Courtship Posture, Hovering One Above the Other in Kelp at Catalina Island. In summer months, black seabass gather in kelp forests in California to form mating aggregations. Courtship behaviors include circling of pairs of giant sea bass, production of booming sounds by presumed males, and nudging of females by males in what is though to be an effort to encourage spawning.
Species: Giant black sea bass, Stereolepis gigas
Location: Catalina Island, California
Image ID: 39434  
A male giant sea bass nudges a female giant sea bass to encourage spawning as they swim in a tight circle. This courting pair of giant sea bass is deep in the kelp forest at Catalina Island. In summer months, giant sea bass gather in kelp forests in California to form courtship and mating aggregations, eventually leading to spawning, Stereolepis gigas
A male giant sea bass nudges a female giant sea bass to encourage spawning as they swim in a tight circle. This courting pair of giant sea bass is deep in the kelp forest at Catalina Island. In summer months, giant sea bass gather in kelp forests in California to form courtship and mating aggregations, eventually leading to spawning.
Species: Giant black sea bass, Stereolepis gigas
Location: Catalina Island, California
Image ID: 39435  
Divers Swim Over the Wreck of the HMCS Yukon in San Diego. Deliberately sunk in 2000 at San Diego's Wreck Alley to form an artifical reef, the HMCS Yukon is a 366-foot-long former Canadian destroyer. It is encrusted with a variety of invertebrate life, including Cornyactis anemones which provide much of the color seen here
Divers Swim Over the Wreck of the HMCS Yukon in San Diego. Deliberately sunk in 2000 at San Diego's Wreck Alley to form an artifical reef, the HMCS Yukon is a 366-foot-long former Canadian destroyer. It is encrusted with a variety of invertebrate life, including Cornyactis anemones which provide much of the color seen here.
Location: San Diego, California
Image ID: 39474  
California sea lions playing underwater, socializing at North Coronado Island, Baja California, Mexico. Much of the play and mock sparring young sea lions perform involves biting and mouthing because what else can they use - they have no hands, duh, Zalophus californianus, Coronado Islands (Islas Coronado)
California sea lions playing underwater, socializing at North Coronado Island, Baja California, Mexico. Much of the play and mock sparring young sea lions perform involves biting and mouthing because what else can they use - they have no hands, duh.
Species: California sea lion, Zalophus californianus
Location: Coronado Islands (Islas Coronado), Baja California, Mexico
Image ID: 39762  
Female California sea lion laying on pink marine algae, Coronado Islands, Mexico. Another female rests at the surface in the background, and two orange garibaldi fish swim around over the reef, Zalophus californianus, Coronado Islands (Islas Coronado)
Female California sea lion laying on pink marine algae, Coronado Islands, Mexico. Another female rests at the surface in the background, and two orange garibaldi fish swim around over the reef.
Species: California sea lion, Zalophus californianus
Location: Coronado Islands (Islas Coronado), Baja California, Mexico
Image ID: 39767  
Oak Alley Plantation and its famous shaded tunnel of 300-year-old southern live oak trees (Quercus virginiana). The plantation is now designated as a National Historic Landmark, Quercus virginiana, Vacherie, Louisiana
Oak Alley Plantation and its famous shaded tunnel of 300-year-old southern live oak trees (Quercus virginiana). The plantation is now designated as a National Historic Landmark.
Species: Southern live oak, Quercus virginiana
Location: Oak Alley Plantation, Vacherie, Louisiana
Image ID: 31019  
Blue-bronze sea chub schooling, Sea of Cortez, Kyphosus analogus
Blue-bronze sea chub schooling, Sea of Cortez.
Species: Blue-bronze chub, Kyphosus analogus
Location: Sea of Cortez, Baja California, Mexico
Image ID: 31213  
Sea lions underwater, adult male (left) and female (right), Zalophus californianus, Sea of Cortez
Sea lions underwater, adult male (left) and female (right).
Species: California sea lion, Zalophus californianus
Location: Sea of Cortez, Baja California, Mexico
Image ID: 31218  
Sea lion harem of females, underwater, Zalophus californianus, Sea of Cortez
Sea lion harem of females, underwater.
Species: California sea lion, Zalophus californianus
Location: Sea of Cortez, Baja California, Mexico
Image ID: 31228  
Photographing down the throat of a tiger shark with a Gopro on a selfie-stick, Galeocerdo cuvier
Photographing down the throat of a tiger shark with a Gopro on a selfie-stick.
Species: Tiger shark, Galeocerdo cuvier
Location: Bahamas
Image ID: 31879  
Chocolate lily growing among grasses on oak-covered hillsides. The chocolate lily is a herbaceous perennial monocot that is increasingly difficult to find in the wild due to habitat loss. The flower is a striking brown color akin to the color of chocolate, Santa Rosa Plateau Ecological Reserve, Murrieta, California
Chocolate lily growing among grasses on oak-covered hillsides. The chocolate lily is a herbaceous perennial monocot that is increasingly difficult to find in the wild due to habitat loss. The flower is a striking brown color akin to the color of chocolate.
Location: Santa Rosa Plateau Ecological Reserve, Murrieta, California
Image ID: 33151  
Three giant black sea bass, gathering in a mating/courtship aggregation amid kelp forest at Catalina Island. In summer months, black seabass gather in kelp forests in California to form mating aggregations. Courtship behaviors include circling of pairs of giant sea bass, production of booming sounds by presumed males, and nudging of females by males in what is though to be an effort to encourage spawning, Stereolepis gigas
Three giant black sea bass, gathering in a mating/courtship aggregation amid kelp forest at Catalina Island. In summer months, black seabass gather in kelp forests in California to form mating aggregations. Courtship behaviors include circling of pairs of giant sea bass, production of booming sounds by presumed males, and nudging of females by males in what is though to be an effort to encourage spawning.
Species: Giant black sea bass, Stereolepis gigas
Location: Catalina Island, California
Image ID: 33355  
Mature adult male South American sea lion, Otaria flavescens, Patagonia, Argentina, Otaria flavescens, Puerto Piramides, Chubut
Mature adult male South American sea lion, Otaria flavescens, Patagonia, Argentina.
Species: South American Sea Lion, Otaria flavescens
Location: Puerto Piramides, Chubut, Argentina
Image ID: 38395  
Southern elephant seal, adult male, Mirounga leonina, Valdes Peninsula, Argentina, Mirounga leonina, Puerto Piramides, Chubut
Southern elephant seal, adult male, Mirounga leonina, Valdes Peninsula, Argentina.
Species: Southern elephant seal, Mirounga leonina
Location: Puerto Piramides, Chubut, Argentina
Image ID: 38415  
Magellanic penguin, bloodied following a fight with another male to defend its burrow, Spheniscus magellanicus, Patagonia, Spheniscus magellanicus, Puerto Piramides, Chubut, Argentina
Magellanic penguin, bloodied following a fight with another male to defend its burrow, Spheniscus magellanicus, Patagonia.
Species: Magellanic penguin, Spheniscus magellanicus
Location: Puerto Piramides, Chubut, Argentina
Image ID: 38433  
The Botanical Building in Balboa Park, San Diego. The Botanical Building, at 250 feet long by 75 feet wide and 60 feet tall, was the largest wood lath structure in the world when it was built in 1915 for the Panama-California Exposition. The Botanical Building, located on the Prado, west of the Museum of Art, contains about 2,100 permanent tropical plants along with changing seasonal flowers. The Lily Pond, just south of the Botanical Building, is an eloquent example of the use of reflecting pools to enhance architecture. The 193' by 43' foot pond and smaller companion pool were originally referred to as Las Lagunas de las Flores (The Lakes of the Flowers) and were designed as aquatic gardens. The pools contain exotic water lilies and lotus which bloom spring through fall
The Botanical Building in Balboa Park, San Diego. The Botanical Building, at 250 feet long by 75 feet wide and 60 feet tall, was the largest wood lath structure in the world when it was built in 1915 for the Panama-California Exposition. The Botanical Building, located on the Prado, west of the Museum of Art, contains about 2,100 permanent tropical plants along with changing seasonal flowers. The Lily Pond, just south of the Botanical Building, is an eloquent example of the use of reflecting pools to enhance architecture. The 193' by 43' foot pond and smaller companion pool were originally referred to as Las Lagunas de las Flores (The Lakes of the Flowers) and were designed as aquatic gardens. The pools contain exotic water lilies and lotus which bloom spring through fall.
Location: Balboa Park, San Diego, California
Image ID: 28823  
Full moon with 22-degree lunar halo, Joshua Tree National Park. The lunar halo (not to be cofused with lunar corona) forms when moonlight refracts through high altitude ice crystals. As no light is refracted at angles smaller than 22-degrees the sky is darker inside the halo
Full moon with 22-degree lunar halo, Joshua Tree National Park. The lunar halo (not to be cofused with lunar corona) forms when moonlight refracts through high altitude ice crystals. As no light is refracted at angles smaller than 22-degrees the sky is darker inside the halo.
Location: Joshua Tree National Park, California
Image ID: 30711  
Adult male humpback whale singing, suspended motionless underwater. Only male humpbacks have been observed singing. All humpbacks in the North Pacific sing the same whale song each year, and the song changes slightly from one year to the next, Megaptera novaeangliae, Maui
Adult male humpback whale singing, suspended motionless underwater. Only male humpbacks have been observed singing. All humpbacks in the North Pacific sing the same whale song each year, and the song changes slightly from one year to the next.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 02796  
Humpback whale mother, calf (top), male escort (rear), underwater. A young humpback calf typically swims alongside or above its mother, and male escorts will usually travel behind the mother, Megaptera novaeangliae, Maui
Humpback whale mother, calf (top), male escort (rear), underwater. A young humpback calf typically swims alongside or above its mother, and male escorts will usually travel behind the mother.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 02819  
Adult male humpback whale bubble streaming underwater. The male escort humpback whale seen here is emitting a curtain of bubbles as it swims behind a female (left) during a competitive group. The bubble curtain may be meant as warning or visual obstruction to other male whales interested in the mother, Megaptera novaeangliae, Maui
Adult male humpback whale bubble streaming underwater. The male escort humpback whale seen here is emitting a curtain of bubbles as it swims behind a female (left) during a competitive group. The bubble curtain may be meant as warning or visual obstruction to other male whales interested in the mother.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 02828  
Adult male humpback whale bubble streaming underwater. The male escort humpback whale seen here is emitting a curtain of bubbles as it swims behind a mother and calf. The bubble curtain may be meant as warning or visual obstruction to other nearby male whales interested in the mother, Megaptera novaeangliae, Maui
Adult male humpback whale bubble streaming underwater. The male escort humpback whale seen here is emitting a curtain of bubbles as it swims behind a mother and calf. The bubble curtain may be meant as warning or visual obstruction to other nearby male whales interested in the mother.
Species: Humpback whale, Megaptera novaeangliae
Location: Maui, Hawaii
Image ID: 05925  
Craig, the Famous Old Male Tusker Elephant with the World's Largest Tusks, Amboseli National Park, Kenya, Loxodonta africana
Craig, the Famous Old Male Tusker Elephant with the World's Largest Tusks, Amboseli National Park, Kenya.
Species: African elephant, Loxodonta africana
Location: Amboseli National Park, Kenya
Image ID: 39555  
Craig the Famous Old Male Tusker Elephant with the World's Largest Tusks, Amboseli National Park, Kenya, Loxodonta africana
Craig the Famous Old Male Tusker Elephant with the World's Largest Tusks, Amboseli National Park, Kenya.
Species: African elephant, Loxodonta africana
Location: Amboseli National Park, Kenya
Image ID: 39557  
Male Lion with Fresh Kill in Tall Grass, Masai Mara, Kenya, Panthera leo, Maasai Mara National Reserve
Male Lion with Fresh Kill in Tall Grass, Masai Mara, Kenya.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 39632  
Lilac-Breasted Roller, Coracias caudatus, Masai Mara, Kenya, Coracias caudatus, Maasai Mara National Reserve
Lilac-Breasted Roller, Coracias caudatus, Masai Mara, Kenya.
Species: Lilac-Breasted Roller, Coracias caudatus
Location: Maasai Mara National Reserve, Kenya
Image ID: 39640  
Lion Cub Eight Weeks Old, Mara North Conservancy, Kenya, Panthera leo
Lion Cub Eight Weeks Old, Mara North Conservancy, Kenya.
Species: African lion, Panthera leo
Location: Mara North Conservancy, Kenya
Image ID: 39655  
Brandt's Cormorant Flying in La Jolla, lit by early morning sun, non-breeding plumage, Phalacrocorax penicillatus
Brandt's Cormorant Flying in La Jolla, lit by early morning sun, non-breeding plumage.
Species: Brandt's Cormorant Brandt's Cormorant, Phalacrocorax penicillatus
Location: La Jolla, California
Image ID: 39831  
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