Search results for Sexual Reproduction

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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, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
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.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26168  
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, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
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.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26170  
Carcasses of dead sockeye salmon, line the edge of the Adams River. These salmon have already completed their spawning and have died, while other salmon are still swimming upstream and have yet to lay their eggs, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Carcasses of dead sockeye salmon, line the edge of the Adams River. These salmon have already completed their spawning and have died, while other salmon are still swimming upstream and have yet to lay their eggs.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26154  
Sockeye salmon, swim upstream in the Adams River, traveling to reach the place where they hatched four years earlier in order to spawn a new generation of salmon eggs, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Sockeye salmon, swim upstream in the Adams River, traveling to reach the place where they hatched four years earlier in order to spawn a new generation of salmon eggs.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26155  
Brown pelican, juvenile with blue and gray identification bands on its legs. These tags aid scientists in understanding how the birds travel and recover if they have been rehabilitated. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning, Pelecanus occidentalis, Pelecanus occidentalis californicus, La Jolla
Brown pelican, juvenile with blue and gray identification bands on its legs. These tags aid scientists in understanding how the birds travel and recover if they have been rehabilitated. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 23631  
Brown pelican, winter adult breeding plumage, showing bright red gular pouch and dark brown hindneck plumage of breeding adults. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning, Pelecanus occidentalis, Pelecanus occidentalis californicus, La Jolla
Brown pelican, winter adult breeding plumage, showing bright red gular pouch and dark brown hindneck plumage of breeding adults. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 23640  
Brown pelican, adult winter non-breeding plumage showing white hindneck and red gular throat pouch.. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning, Pelecanus occidentalis, Pelecanus occidentalis californicus, La Jolla
Brown pelican, adult winter non-breeding plumage showing white hindneck and red gular throat pouch.. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 15130  
Brown pelican, non-breeding winter plumage. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning, Pelecanus occidentalis, Pelecanus occidentalis californicus, La Jolla
Brown pelican, non-breeding winter plumage. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 20078  
A bull elephant seal forceably mates (copulates) with a much smaller female, often biting her into submission and using his weight to keep her from fleeing. Males may up to 5000 lbs, triple the size of females. Sandy beach rookery, winter, Central California, Mirounga angustirostris, Piedras Blancas, San Simeon
A bull elephant seal forceably mates (copulates) with a much smaller female, often biting her into submission and using his weight to keep her from fleeing. Males may up to 5000 lbs, triple the size of females. Sandy beach rookery, winter, Central California.
Species: Elephant seal, Mirounga angustirostris
Location: Piedras Blancas, San Simeon, California
Image ID: 20388  
A male sockeye salmon, showing injuries sustained as it migrated hundreds of miles from the ocean up the Fraser River, swims upstream in the Adams River to reach the place where it will fertilize eggs laid by a female in the rocks. It will die so after spawning, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
A male sockeye salmon, showing injuries sustained as it migrated hundreds of miles from the ocean up the Fraser River, swims upstream in the Adams River to reach the place where it will fertilize eggs laid by a female in the rocks. It will die so after spawning.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26151  
A sockeye salmon swims in the shallows of the Adams River, with the surrounding forest visible in this split-level over-under photograph, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
A sockeye salmon swims in the shallows of the Adams River, with the surrounding forest visible in this split-level over-under photograph.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26158  
A school of sockeye salmon, swimming up the Adams River to spawn, where they will lay eggs and die, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
A school of sockeye salmon, swimming up the Adams River to spawn, where they will lay eggs and die.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26164  
A male sockeye salmon, showing injuries sustained as it migrated hundreds of miles from the ocean up the Fraser River, swims upstream in the Adams River to reach the place where it will fertilize eggs laid by a female in the rocks. It will die so after spawning, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
A male sockeye salmon, showing injuries sustained as it migrated hundreds of miles from the ocean up the Fraser River, swims upstream in the Adams River to reach the place where it will fertilize eggs laid by a female in the rocks. It will die so after spawning.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26166  
A sockeye salmon swims in the shallows of the Adams River, with the surrounding forest visible in this split-level over-under photograph, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
A sockeye salmon swims in the shallows of the Adams River, with the surrounding forest visible in this split-level over-under photograph.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26167  
Sockeye salmon, swimming upstream in the shallow waters of the Adams River. When they reach the place where they hatched from eggs four years earlier, they will spawn and die, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Sockeye salmon, swimming upstream in the shallow waters of the Adams River. When they reach the place where they hatched from eggs four years earlier, they will spawn and die.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26169  
A male sockeye salmon, showing injuries sustained as it migrated hundreds of miles from the ocean up the Fraser River, swims upstream in the Adams River to reach the place where it will fertilize eggs laid by a female in the rocks. It will die so after spawning, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
A male sockeye salmon, showing injuries sustained as it migrated hundreds of miles from the ocean up the Fraser River, swims upstream in the Adams River to reach the place where it will fertilize eggs laid by a female in the rocks. It will die so after spawning.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26171  
A sockeye salmon swims in the shallows of the Adams River, with the surrounding forest visible in this split-level over-under photograph, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
A sockeye salmon swims in the shallows of the Adams River, with the surrounding forest visible in this split-level over-under photograph.
Species: Sockeye salmon, Oncorhynchus nerka
Location: Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Image ID: 26177  
Brown pelican. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning. In winter months, breeding adults assume a dramatic plumage with brown neck, yellow and white head and bright red gular throat pouch, Pelecanus occidentalis, Pelecanus occidentalis californicus, La Jolla
Brown pelican. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning. In winter months, breeding adults assume a dramatic plumage with brown neck, yellow and white head and bright red gular throat pouch.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 15142  
A bull elephant seal forceably mates (copulates) with a much smaller female, often biting her into submission and using his weight to keep her from fleeing. Males may up to 5000 lbs, triple the size of females. Sandy beach rookery, winter, Central California, Mirounga angustirostris, Piedras Blancas, San Simeon
A bull elephant seal forceably mates (copulates) with a much smaller female, often biting her into submission and using his weight to keep her from fleeing. Males may up to 5000 lbs, triple the size of females. Sandy beach rookery, winter, Central California.
Species: Elephant seal, Mirounga angustirostris
Location: Piedras Blancas, San Simeon, California
Image ID: 15408  
Black bear walking in a forest. Black bears can live 25 years or more, and range in color from deepest black to chocolate and cinnamon brown. Adult males typically weigh up to 600 pounds. Adult females weight up to 400 pounds and reach sexual maturity at 3 or 4 years of age. Adults stand about 3' tall at the shoulder, Ursus americanus, Orr, Minnesota
Black bear walking in a forest. Black bears can live 25 years or more, and range in color from deepest black to chocolate and cinnamon brown. Adult males typically weigh up to 600 pounds. Adult females weight up to 400 pounds and reach sexual maturity at 3 or 4 years of age. Adults stand about 3' tall at the shoulder.
Species: American black bear, Ursus americanus
Location: Orr, Minnesota
Image ID: 18751  
Brown bears fighting or sparring. These are likely young but sexually mature males that are simply mock fighting for practice, Ursus arctos, Lake Clark National Park, Alaska
Brown bears fighting or sparring. These are likely young but sexually mature males that are simply mock fighting for practice.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19177  
Brown bears fighting or sparring. These are likely young but sexually mature males that are simply mock fighting for practice, Ursus arctos, Lake Clark National Park, Alaska
Brown bears fighting or sparring. These are likely young but sexually mature males that are simply mock fighting for practice.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19250  
Brown pelican, winter plumage, showing bright red gular pouch and dark brown hindneck colors of breeding adults. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning, Pelecanus occidentalis, Pelecanus occidentalis californicus, La Jolla
Brown pelican, winter plumage, showing bright red gular pouch and dark brown hindneck colors of breeding adults. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 20082  
Salp (pelagic tunicate) reproduction, open ocean, Cyclosalpa affinis, San Diego, California
Salp (pelagic tunicate) reproduction, open ocean.
Species: Salp, Cyclosalpa affinis
Location: San Diego, California
Image ID: 01263  
Squid eggs, La Jolla Canyon, Loligo opalescens
Squid eggs, La Jolla Canyon.
Species: Common squid, Loligo opalescens
Location: La Jolla, California
Image ID: 01972  
Proliferating anemone with attached juveniles, growing on kelp stipe, Epiactis prolifera, Monterey, California
Proliferating anemone with attached juveniles, growing on kelp stipe.
Species: Proliferating anemone, Epiactis prolifera
Location: Monterey, California
Image ID: 00573  
Squid mating, Loligo opalescens, La Jolla, California
Squid mating.
Species: Common squid, Loligo opalescens
Location: La Jolla, California
Image ID: 02548  
Simnia and egg cluster on gorgonian, Delonovolva aequalis, Anacapa Island
Simnia and egg cluster on gorgonian.
Species: Simnia, Delonovolva aequalis
Location: Anacapa Island, California
Image ID: 02556  
Squid egg clusters on sand, Loligo opalescens, La Jolla, California
Squid egg clusters on sand.
Species: Common squid, Loligo opalescens
Location: La Jolla, California
Image ID: 05407  
California grunion, Leuresthes tenuis, Carlsbad
California grunion.
Species: California grunion, Leuresthes tenuis
Location: Carlsbad, California
Image ID: 09301  
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