Female chinook salmon that is ready to spawn lays on a table at the Livingston Stone National Fish Hatchery in Shasta Lake, California, U.S., on...
Beau Hopkins, left, and John Rueth, both of the U.S. Fish & Wildlife Service, identify chinook salmon that are ready to spawn at the Livingston Stone...
Les matelots repoussant des glaces à coup de perches pour frayer un passage au 'Pollux', au Groenland en 1933.
Balanin elephant s'attaque aux chataignes et aux glands, femelle perforant un gland de chene vert pour pondre ensuite a l'interieur.
Balanin elephant s'attaque aux chataignes et aux glands, femelle perforant un gland de chene vert pour pondre ensuite a l'interieur.
An attendee gets professional Spawn makeup done during WonderCon 2018 at Anaheim Convention Center on March 25, 2018 in Anaheim, California.
Colorado Parks and Wildlife native aquatics species biologist Paul Foutz, left, and CPW aquatic biologist Carrie Tucker squeeze out eggs from a...
Colorado Parks and Wildlife native aquatics species biologist Paul Foutz squeezes out eggs from a walleye fish at the Lake Pueblo State Park caught...
Colorado Parks and Wildlife volunteer Ron Miller keeps track of walleye fish that were caught at the Lake Pueblo State Park caught during the annual...
Colorado Parks and Wildlife volunteers untangle fishing nets in the boat at the Lake Pueblo State Park during the annual Colorado Parks and Wildlife...
Crew heads back out retrieve more walleye from Lake Pueblo State Park for the annual Colorado Parks and Wildlife Walleye spawn operation March 22,...
Sunrise over Lake Pueblo State Park for the Colorado Parks and Wildlife annual Walleye spawn operation March 22, 2018.
Colorado Parks and Wildlife technician Jim Yengich, center, untangles a walleye fish from a net at the Lake Pueblo State Park caught during the...
Male walleye fish from Lake Pueblo State Park caught during the annual Colorado Parks and Wildlife walleye spawn operation March 22, 2018. Over...
Walleye fish from Lake Pueblo State Park caught during the annual Colorado Parks and Wildlife walleye spawn operation March 22, 2018. Over several...
Longtime Colorado Parks and Wildlife volunteer and U.S. Air Force Veteran Larry Mack makes his way across a floating bridge to the CPW boathouse at...
The frogs spawn elaborate bubble nest on trees to avoid predators on 18 March 2018 in Suining, Jiangxi, China.
The frogs spawn elaborate bubble nest on trees to avoid predators on 18 March 2018 in Suining, Jiangxi, China.
The frogs spawn elaborate bubble nest on trees to avoid predators on 18 March 2018 in Suining, Jiangxi, China.
The frogs spawn elaborate bubble nest on trees to avoid predators on 18 March 2018 in Suining, Jiangxi, China.
The frogs spawn elaborate bubble nest on trees to avoid predators on 18 March 2018 in Suining, Jiangxi, China.
moor frog (rana arvalis) male, blue coloured during mating season, with spawn in spawning waters, thuringia, germany - 蛙卵 個照片及圖片檔
moor frogs (rana arvalis), two males, blue coloured during mating season, with spawn in spawning waters, thuringia, germany - 蛙卵 個照片及圖片檔
moor frogs (rana arvalis), two males, blue coloured during mating season, with spawn in spawning waters, thuringia, germany - 蛙卵 個照片及圖片檔
Takifugu Niphobles spawn at a shore of the Murozumi Penninsula in Hikari, Yamaguchi, Japan. The puffer fish gather at the waters edge at full tide to...
Takifugu Niphobles spawn at a shore of the Murozumi Penninsula in Hikari, Yamaguchi, Japan. The puffer fish gather at the waters edge at full tide to...
Takifugu Niphobles spawn at a shore of the Murozumi Penninsula in Hikari, Yamaguchi, Japan. The puffer fish gather at the waters edge at full tide to...
Takifugu Niphobles spawn at a shore of the Murozumi Penninsula in Hikari, Yamaguchi, Japan. The puffer fish gather at the waters edge at full tide to...
Takifugu Niphobles spawn at a shore of the Murozumi Penninsula in Hikari, Yamaguchi, Japan. The puffer fish gather at the waters edge at full tide to...