Alex Mustard / Grooved brain coral (Diploria labyrinthiformis) at night with polyps extended to feed, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Ross Hoddinott / Red fox (Vulpes vulpes) vixen yawning in the morning light (captive). Lifton, Devon, UK, May

Anup Shah / African Lion (Panthera leo) juvenile reaching out with curiosity, Masai Mara National Reserve, Kenya. March

Martin Willis / Rainbow Lorikeet (Trichoglossus haematodus) pair preening during courtship, Magnetic Island, Queensland, Australia

Jack Dykinga / Bald eagle (Haliaeetus leucocephalus) perched as Snow geese (Chen caerulescens) fly by, Bosque del Apache National Wildlife Refuge, New Mexico, USA, January.

Ernie Janes / Bald eagle (Haliaeetus leucocephalus) portrait, captive, occurs in North America.

Jack Dykinga / Yellow-headed blackbirds (Xanthocephalus xanthocephalus) and Redwing blackbirds (Agelaius phoeniceus) roosting. Whitewater Draw Wildlife Area, Arizona, USA, December.

Jack Dykinga / Murmuration of Yellow-headed blackbirds (Xanthocephalus xanthocephalus) and Redwing blackbirds (Agelaius phoeniceus) at sunset, before roosting. Whitewater Draw Wildlife Area, Arizona, USA, December.

Steven David Miller / Rainbow lorikeet (Trichoglossus moluccanus) on a branch, Cania Gorge National Park, Queensland, Australia. September.

Hermann Brehm / Blackcap (Sylviya atricapilla) male perched in blossom, Hungary, April.

David Fleetham / Jaws and teeth of Stout Moray (Gymnothorax eurostus). Hawaii.

Danny Green / Bald eagle (Haliaeetus leucocephalus) in flight, Alaska, USA, February