Golden Rocket Frog (Anomaloglossus beebei) guarding spawn in Giant Tank Bromeliad (Brocchinia micrantha), Kaieteur National Park, Guyana, South America

Spawn of the Golden Rocket Frog (Anomaloglossus beebei) in giant tank bromeliad (Brocchinia micrantha), Kaieteur National Park, Guyana, South America

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Robber Crab release eggs into ocean, Birgus latro, Christmas Island, Australia

Shoal of Barberfish feeding on eggsmass, Johnrandallia nigriostris, La Paz, Baja California Sur, Mexico

Robber Crab release eggs into ocean, Birgus latro, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Shoal of Barberfish feeding on eggsmass, Johnrandallia nigriostris, La Paz, Baja California Sur, Mexico

Adult pink salmon, Oncorhynchus gorbuscha, returning to the Indian River to spawn near Sitka, Alaska, United States of America

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Shoal of Barberfish feeding on eggsmass, Johnrandallia nigriostris, La Paz, Baja California Sur, Mexico

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Butterflyfishes feeding on Fish Spawn, Chaetodon kleinii, Ambon, Moluccas, Indonesia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Butterflyfishes feeding on Fish Spawn, Chaetodon kleinii, Ambon, Moluccas, Indonesia

Glass Frog Spawn on leaf, Sarapiqui, Costa Rica, Central America

Butterflyfishes feeding on Fish Spawn, Chaetodon kleinii, Ambon, Moluccas, Indonesia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Christmas Island Red Crab release eggs into ocean, Gecarcoidea natalis, Christmas Island, Australia

Butterflyfishes feeding on Fish Spawn, Chaetodon kleinii, Ambon, Moluccas, Indonesia

Marbled grouper from the French Polynesian Islands gather in the South Pass of Fakarava to spawn just once a year, French Polynesia.

Leaping pink salmon (Oncorhynchus gorbuscha) gathering to spawn at Lake Eva on Chichagof Island, Alaska, United States of America, North America

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering after the spawn just outside of Sitka, Alaska, United States of America

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering after the spawn just outside of Sitka, Alaska, United States of America

Two mandarinfish spawn and release eggs, Anilao, Philippines.

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering to spawn just outside of Sitka, Southeast Alaska, United States of America, North America

Almadraba Atlantic bluefin tuna fishery is a maze of nets from which the tuna cannot escape as they always swim east to spawn, Andalucia, Spain, Europe

Almadraba Atlantic bluefin tuna fishery is a maze of nets from which the tuna cannot escape as they always swim east to spawn, Andalucia, Spain, Europe

Almadraba Atlantic bluefin tuna fishery is a maze of nets from which the tuna cannot escape as they always swim east to spawn, Andalucia, Spain, Europe

Spawning pink salmon (Oncorhynchus gorbuscha) gathering to run upstream in Red Bluff Bay, Southeast Alaska, USA

Common Frog spawn developing (Rana temporaria). Sark, British Channel Islands, UK

Common Frog spawn (Rana temporaria). Sark, British Channel Islands, UK

Spawning pink salmon (Oncorhynchus gorbuscha) gathering to run upstream in Red Bluff Bay, Southeast Alaska, USA

Spawning pink salmon (Oncorhynchus gorbuscha) gathering to run upstream in Red Bluff Bay, Southeast Alaska, USA

Spawning sockeye salmon (Oncorhynchus nerka), also called red salmon or blueback salmon gathering to run upstream in the Mendenhall River just outside Juneau, Southeast Alaska, USA. Pacific Ocean

Spawning pink salmon (Oncorhynchus gorbuscha) leaping fromn the water in a stream running out of Lake Eva, Southeast Alaska, USA

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering after the spawn just outside of Sitka, Southeast Alaska, USA

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering after the spawn just outside of Sitka, Southeast Alaska, USA

Spawning pink salmon (Oncorhynchus gorbuscha) leaping in Red Bluff Bay, Southeast Alaska, USA

Spawning pink salmon (Oncorhynchus gorbuscha) leaping in Red Bluff Bay, Southeast Alaska, USA

Spawning pink salmon (Oncorhynchus gorbuscha) leaping in Red Bluff Bay, Southeast Alaska, USA

A young black bear (Ursus americanus) foraging along the streambed for red (sockeye) salmon returning to spawn near Mendenhal Glacier just outside of Juneau, Alaska, USA

Spawning sockeye salmon (Oncorhynchus nerka), also called red salmon or blueback salmon gathering to run upstream in the Mendenhall River just outside Juneau, Southeast Alaska, USA. Pacific Ocean

Spawning pink salmon (Oncorhynchus gorbuscha) leaping in Red Bluff Bay, Southeast Alaska, USA

Spawning sockeye salmon (Oncorhynchus nerka), also called red salmon or blueback salmon gathering to run upstream in the Mendenhall River just outside Juneau, Southeast Alaska, USA. Pacific Ocean

Adult male pink salmon (Oncorhynchus gorbuscha - nicknamed the "Humpbacked salmon") struggling to swim upstream to spawn in a stream in southeast Alaska, USA.

Spawning pink salmon (Oncorhynchus gorbuscha) leaping in Red Bluff Bay, Southeast Alaska, USA

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering after the spawn just outside of Sitka, Southeast Alaska, USA

A young black bear (Ursus americanus) foraging along the streambed for red (sockeye) salmon returning to spawn near Mendenhal Glacier just outside of Juneau, Alaska, USA

Frogspawn, United Kingdom, Europe

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering after the spawn just outside of Sitka, Southeast Alaska, USA

A young black bear (Ursus americanus) foraging along the streambed for red (sockeye) salmon returning to spawn near Mendenhal Glacier just outside of Juneau, Alaska, USA

Mandarinfish, Synchiropus splendidus, male, Malapascua, Cebu, Philippines, Visayan Sea.

Moor frog (Rana arvalis), spawn, Kalkalpen National Park, Limestone Alps, Upper Austria, Europe

Common frog (Rana temporaria), spawn, Kalkalpen, Limestone Alps National Park, Upper Austria, Austria, Europe

Hands holding spawn of Common frog (Rana temporaria)

Common frog (Rana temporaria), spawn, Kalkalpen, Limestone Alps National Park, Upper Austria, Austria, Europe

Common Frog (Rana temporaria), spawning, Daun, Eifel, Rhineland-Palatinate, Germany, Europe

Moor frog (Rana arvalis) male, blue coloured during mating season, with spawn in spawning waters, Thuringia, Germany, Europe

Common toad (Bufo bufo-Komplex), Pair spawning, spawn and aquatic plants in a pond, pairing, split image, Saxony-Anhalt, Germany, Europe

Common Frog (Rana temporaria), in the midst of spawn

Water frog pool frog ( Rana esculenta) sitting near by frog spawn on stone in water

Moor frogs (Rana arvalis), two males, blue coloured during mating season, with spawn in spawning waters, Thuringia, Germany, Europe

Spawn of a Toad (Bufo bufo) in a pond, Bavaria, Germany, Europe

Clutches, spawn, fish spawn, eggs, fish eggs, Red Sea clownfish (Amphiprion bicinctus), red Red Sea, Aqaba, Kingdom of Jordan

European Common Brown Frog (Rana temporaria), frog spawn, frog eggs in shallow water

Front view of Alaska Peninsula brown bear (Ursus arctos horribilis) with freshly caught sockeye salmon (Oncorhynchus nerka), Katmai National Park and Preserve, Alaska, USA

Wet Alaska Peninsula brown bear (Ursus arctos horribilis) shaking off water, Katmai National Park and Preserve, Alaska, USA

Red Sockeye Salmon (Oncorhynchus Nerka) Turning From Silver To Red After Entering Fresh Water To Spawn In A Small Stream Near Mile 33 Of The Seward Highway In Summertime, South-Central Alaska, Alaska, United States Of America

Salmon Ascending Waterfall, Katami National Park, Alaska

Two Twobar anemone fishes with eggs, Amphiprion bicinctus, Djibouti, Djibuti, Africa, Afar Triangle, Gulf of Aden, Gulf of Tadjourah

Twobar anemone fishes with eggs, Amphiprion bicinctus, Djibouti, Djibuti, Africa, Afar Triangle, Gulf of Aden, Gulf of Tadjourah

Twobar anemone fishes with eggs, Amphiprion bicinctus, Djibouti, Djibuti, Africa, Afar Triangle, Gulf of Aden, Gulf of Tadjourah

pikeperch watching spawn, Sander lucioperca, Germany, Bavaria

fish spawn, Germany, Starnberger See

pikeperch watching spawn, Sander lucioperca, Germany, Bavaria

Spawn of toads, Bufo bufo, Germany, Bavaria

European Frog mating, France

Sockeye Salmons near the bank, Kuril Lake Kamchatka Russia

Kuril Lake Kamchatka Russia

Quinnock salmon spawning in a mountain river, New Zealand

Sockeye Salmons, Kuril Lake Kamchatka Russia

Sockeye Salmons, Kuril Lake Kamchatka Russia