Lorraine Bennery / White-fronted brown lemur (Eulemur albifrons) in tree, Rainforests of the Atsinanana, Marojejy National Park, Madagascar. Endangered species, endemic.

Tui De Roy / Galapagos hawk (Buteo galapagoensis) landing, Galapagos, Ecuador. Vulnerable species.

Tui De Roy / Galapagos hawk (Buteo galapagoensis) in flight, Galapagos, Ecuador. Vulnerable species.

Ole Jorgen Liodden / Polar Bear (Ursus maritimus) swimming, Nordaustlandet, Svalbard, Norway, July.

Roland Seitre / Brazilian Tapir (Tapirus terrestris) baby looking at camera. Captive. Medellin Zoo, Antioquia, Colombia.

Roland Seitre / Brazilian Tapir (Tapirus terrestris) mother with baby. Captive. Medellin Zoo, Antioquia, Colombia.

Andy Rouse / Polar Bear (Ursus maritimus) mother and two cubs playing around iceberg. Svalbard, Norway, Europe, February.

Andy Rouse / Polar bear (Ursus maritimus) on pack ice, Svalbard, Norway. October

Andy Rouse / Polar Bear (Ursus maritimus) on pack ice, Svalbard, Norway. October

Andy Rouse / Polar Bear (Ursus maritimus) walking in landscape, Svalbard, Norway. October

Andy Rouse / Polar Bear (Ursus maritimus) resting on land, Svalbard, Norway. October

Andy Rouse / Polar Bear (Ursus maritimus) resting on land, with paw over eye, Svalbard, Norway. October