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...

Markus Varesvuo / Female Capercaillie (Tetrao urogallus) with newly hatched chick on nest, Kuhmo, Finland, June.

Alex Mustard / Saddleback anemonefish (Amphiprion polymnus) in anemone home, Anilao, Batangas, Luzon, Philippines. Verde Island Passages, Tropical West Pacific Ocean.

MYN / Tim Hunt / Composite of Caddisfly (Trichoptera) larva and cases, Worcestershire, England, UK, May.

Alex Mustard,Alex Mustard / A signal blenny (Emblemaria hypacanthus) displays its showy dorsal fin as it extends out of its tube home. La Paz, Mexico. Sea Of Cortez, East Pacific Ocean.

Bernard Castelein / Village life, woman covering her face, in doorway to village home, with peacock art on walls, Sawai Modhopu, Rajasthan, India

Barrie Britton / Male Vogelkop bowerbird (Amblyornis inornata) inspects the decorations outside his bower. Vogelkop Peninsula, West Papua, Indonesia. Picture taken during filming for BBC "Life" TV Series, September 20...

Barrie Britton / Male Vogelkop bowerbird (Amblyornis inornata) outside his decorated bower. Vogelkop Peninsula, West Papua, Indonesia. Picture taken during filming for BBC "Life" TV Series, September 2008

SCOTLAND: The Big Picture / Individual flame shell (Limaria hians) Loch Carron. Scotland, UK, January

Ashley Cooper / Navala village in the Fijian highlands, the only village left on the island still composed entirely of traditional Bure houses, Fiji, March 2007.

Ashley Cooper / Navala village in the Fijian highlands, the only village left on the island still composed entirely of traditional Bure houses, Fiji, March 2007.

Alex Mustard / Magnificent sea anemone (Heteractis magnifica) is home to a Pink anemonefish (Amphiprion perideraion) in cabbage coral. Ulong, Rock Islands, Palau, Mirconesia. Tropical west Pacific Ocean