Claudio Contreras / American crocodile (Crocodylus acutus) extreme close up with jaws open, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Claudio Contreras / Common spiny-tailed iguana (Ctenosaura similis) climbing Green iguana (Iguana iguana), Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Claudio Contreras / American crocodile (Crocodylus acutus) portrait over seagrass bed in shallow ater, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico, May.

Claudio Contreras / American crocodile (Crocodylus acutus) rear view of animal swimming away over seagrass bed, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Solvin Zankl / Juvenile deep-sea pelagic snail (Limacina helicoides) captive specimen from off the coast of Cape Verde

Tony Heald / Bengal tiger (Panthera tigris tigris) female head portrait, Bandhavgarh National Park India.

David Pattyn / Alpine ibex (Capra ibex) male in deep snow on a ridge during heavy snowfall, Gran Paradiso National Park, the Alps, Italy. January Highly commended in the Portfolio category of the Terre Sauvage Natur...

David Pattyn / Alpine chamois (Rupicapra rupicapra rupicapra) in winter landscape with snow covered trees, Valsavarenche, Gran Paradiso National Park, Italy. January

Franco Banfi / Bighead sculpin (Batrachocottus baicalensis), Lake Baikal, Siberia, Russia.