Alex Mustard / Pair of Western clown anemonefish (Amphiprion ocellaris) spawning orange eggs on the rock beneath their Magnificent sea anemone (Heteractis magnifica) home on a coral reef. This photo shows the larger...

Lucas Bustamante / Treehopper (Alchisme onorei) with eggs Papallacta, Napo, Ecuador

Tui De Roy / Green turtle (Chelonia mydas), female returning to the sea after egg laying, Puerto Pajas, Isabela Island, Galapagos

Shane P. White / Leatherback Sea Turtle (Dermochelys coriacea) female returning to sea after egg laying, Trinidad and Tobago, Caribbean

Shane Gross / Queen conch (Lobatus gigas) laying eggs in the Exuma Cays Land and Sea Park, Exuma, Bahamas.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) pair with recently laid egg, on sea ice. Atka Bay, Antarctica. May.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) pair, female laying egg. Atka Bay, Antarctica. June.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) female laying egg. Atka Bay, Antarctica. June. Sequence 3/5.

Theo Bosboom / Common blue damselfly (Enallagma cyathigerum) male trying to interfere with a mating couple. Hondenven, Tubbergen, the Netherlands, June.

Dave Bevan / Female Giant wood wasp (Uroceras gigas) inserting ovipositor into tree stump to lay eggs, Carmarthenshire, Wales, UK, September.

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.