Franco Banfi / Detail of sponge (Chalinula nematifera) Maldives, Indian Ocean

Alex Mustard / Yellow tube sponge (Aplysina fistularis) top view of tubes with water swirling around them, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) chick aged 20-24 weeks, in moult standing on sea ice. Atka Bay, Antarctica. January.

Nick Hawkins / Galapagos green turtle (Chelonia mydas agassizi) swimming in coastal waters of San Cristobal Island, Galapagos.

Steven David Miller / Central netted ground dragon (Ctenophorus nuchalis) basking in evening light. Kings Canyon, Watarrka National Park, Northern Territory, Australia.

Robert Thompson / Orange-tip butterfly (Anthocharis cardamines), male on Cuckooflower (Cardamine pratensis). Brackagh Moss National Nature Reserve, Portadown, County Armagh, Northern Ireland, UK. May.

Robert Thompson / Orange-tip butterfly (Anthocharis cardamines), male on Cuckooflower (Cardamine pratensis). Brackagh Moss National Nature Reserve, Portadown, County Armagh, Northern Ireland, UK. May.

Robert Thompson / Common heath moth (Ematurga atomaria) on leaf. Fillols, Pyrenees Orientales, south west France. May.

Alex Mustard / Reticulate stargazer (Uranoscopus sp.) portrait. Ambon Bay, Ambon, Maluku Archipelago, Indonesia. Banda Sea, tropical west Pacific Ocean.

Lucas Bustamante / Marbled tree frog (Dendropsophus marmoratus) on leaf, Cuyabeno, Sucumbios, Ecuador.

Ingo Arndt / Tissue moth (Triphosa dubitata) hibernating in cave, Germany. February.

David Kjaer / Peach blossom moth (Thyatira batis) Wiltshire, UK