Search results for Sexual Reproduction

-1- 2 3 4 5
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
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
Sockeye salmon, migrating upstream in the Adams River to return to the spot where they were hatched four years earlier, where they will spawn, lay eggs and die, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Black bear walking in a grassy meadow. 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 grassy meadow. 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 grassy meadow. 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 grassy meadow. 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 grassy meadow. 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
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
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
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
Gray whales, two males both with extended penis during courtship socialization, Laguna San Ignacio, Eschrichtius robustus, San Ignacio Lagoon
Brown pelican, golden sunrise light, 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, 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, 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, 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, Pelecanus occidentalis, Pelecanus occidentalis californicus, La Jolla
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 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, 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, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
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, 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, 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, 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, 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, Pelecanus occidentalis, Pelecanus occidentalis californicus, La Jolla
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
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
Two male sockeye salmon, swimming together against the current of the Adams River. After four years of life and two migrations of the Fraser and Adams Rivers, they will soon fertilize a female's eggs and then die, Oncorhynchus nerka, Roderick Haig-Brown Provincial Park, British Columbia, Canada
-1- 2 3 4 5
Permalink: Sexual_Reproduction photos

All photographs copyright © Phillip Colla / Oceanlight.com, all rights reserved worldwide.