David Fleetham / Jack (Caranx sp), shoal of juveniles following Southern stingray (Dasyatis americana), searching for prey. Bahamas.

Ashley Cooper / Bedouins with their camels in the Sinai Desert near Dahab, Egypt, October 2008.

Will Watson / Mud dweller beetle (Ilybius ater) at rest on Hornwort (Ceratophyllum demersum), Carmarthenshire, Wales. Captive.

Pete Oxford / Red spotted Hawkfish (Amblycirrhitus pinos) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Redlip blenny (Ophioblennius macclurei) Bonaire, Netherlands Antilles, Caribbean

David Shale / Rockling (Gaidropsarus sp) a seabed dweller from the Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Rockling (Gaidropsarus sp) a seabed dweller from the Mid-Atlantic Ridge, North Atlantic Ocean

Robert Valentic / Dunmall's snake {Furina dunmalli} male, dweller of dry, cracked ground, Yelarbon, Queensland, Australia, Endangered

Tui De Roy / Peach-fronted Parakeet (Aratinga aurea), Cerrado dweller, Emas National Park, Brazil

Tony Wu / Cryptic bottom-dweller Velvetfish (Paraploactis), which lacks swim bladders, on sea floor. Celebes sea, Pacific sea, Indonesia.