Alex Mustard / Split level image of Leather corals (Sarcophyton sp.) flourishing in shallow water close to uninhabited coral islands. Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea. Tropical West Pacific Ocean...

Doug Perrine / Pygmy shark (Euprotomicrus bispinatus) portrait, captive. Kona, Hawaii. Central Pacific Ocean. Digitally manipulated image.

Suzi Eszterhas / Sea Otter (Enhydra lutris) raft, Monterey Bay, California, digitally manipulated

Ernie Janes / Abstract photo of Tower Bridge, with blurred motion red bus, London, June 2013. Digitally manipulated.

Alex Mustard / Blue shark (Prionace glauca) near the surface of the English Channel. Penzance, Cornwall, England, British Isles. North East Atlantic Ocean, August. Digitally manipulated to improve composition see 1...

Ernie Janes / Robin (Erithacus rubecula) in snow, Titchwell, Norfolk, January. Image digitally manipulated to add more snow.

Pete Oxford / Amazon Tree Boa (Corallus hortulanus) in rainforest, Iwokrama Reserve, Guyana, digitally manipulated image

Alex Mustard / Split level image of Caribbean reef shark (Carcharhinus perezi) breaking surface at dusk. Grand Bahama, Bahamas. Digitally manipulated image.

Pete Oxford / Common Tree Boa (Corallus hortulanus) coiled around branch, Iwokrama Rainforest Reserve, Guyana, manipulated image

Pete Oxford / Common Tree Boa (Corallus hortulanus) climbing in tree, Iwokrama Rainforest Reserve, Guyana, manipulated image

Pete Oxford / Common Tree Boa (Corallus hortulanus) wrapped around branch, Iwokrama Rainforest Reserve, Guyana, manipulated image

Doug Perrine / Dolphin fish / Mahi mahi / Dorado (Coryphaena hippurus) close up, off Isla Mujeres, near Cancun, Yucatan Peninsula, Mexico, Caribbean Sea (digitially manipulated)