David Fleetham / Clark's anemonefish (Amphiprion clarkii), pair tending to egg mass placed beside the protection of an anemone. Yap, Micronesia.

Ingo Arndt / Villagers collecting eggs from Olive ridley sea turtles (Lepidochelys olivacea) during the first two days of the arribada (mass nesting event). This is the only place in the world where it is legal to...

Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) digging their nests by night with stars during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.

Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) females coming ashore at twilight during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.

Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) females coming ashore during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.

Pete Oxford / American Crocodile (Crocodylus acutus) nest excavated by nesting female Green Iguana (Iguana iguana), Banco Chinchorro, Yucatan Peninsula, Mexico

Mark MacEwen / Mopane moth (Imbrasia belina) eggs hatching, Tuli Block, Botswana

Sergey Gorshkov / Salmon (Salmonidae) eggs falling to lake bottom, Lake Kuril, Kamchatka, Far East Russia, July

Pete Oxford / Black-browed Albatross (Thalassarche melanophrys) nesting colony, Steeple Jason Island, Falkland Islands

Ingo Arndt / Brown Trout (Salmo trutta) eggs, fish already visible through egg-shell, Europe

Scott Leslie / Frog egg mass, Nova Scotia, Canada

Birgitte Wilms / Nudibranch laying eggs, Indonesia