Andrew Parkinson / Gannet (Morus bassanus) chick in a line of adults. Shetland Islands, Scotland, UK, August.

Denis-Huot / Grant's zebra (Equus burchelli boehmi) in a migration herd of wildebeest (Connochaetes taurinus) Masai-Mara Game Reserve, Kenya

Phil Savoie / Painted nomad bee (Nomada fucata) male with characteristics green eyes, feeding on Dandelion (Taraxacum offinicale) Monmouthshire, Wales, UK. April

Alain Dragesco-Joffe / Cheetah (Acionyx jubatus) tracks in the sand showing the typical characteristics of the cheetah - asymmetrical paws and non-retractible claws, Tenere, Sahara, Niger.

Ann & Steve Toon / Pale-rumped zebra (Equus quagga) exhibiting quagga-like characteristics part of the Quagga Project to bring back the quagga, an extinct sub-species of the Plains zebra (Equus quagga burchelli), Mokala...

Juergen Freund / Blocks of soft coquina limestone formed from shells of Bivalve Cardiid Cockle {Fragrum erugatum} Rainwater repeatedly dissolves small quantities of calcium carbonate of which the shells are composed....