Andy Rouse / Bengal tiger (Panthera tigris) walking portrait, Ranthambhore National Park, India. Crop of image 01500288 Endangered species.

Andy Rouse / Polar Bear (Ursus maritimus) swimming, Svalbard, Norway (non-ex) September 2009. Image 01262526 is cropped from this frame

Andy Rouse / Polar Bear (Ursus maritimus) about to enter water, Svalbard, Norway, September 2009. Image 01262546 is cropped from this frame

Andy Rouse / Polar Bear (Ursus maritimus) about to enter water, Svalbard, Norway, September 2009. Cropped from image 01262546

Andy Rouse / Polar Bear (Ursus maritimus) swimming Svalbard, Norway (non-ex). Cropped from image 01262709

Jen Guyton / Meerkats (Suricata suricatta) two playfighting in the Kalahari Desert, South Africa. Cropped image.

Jen Guyton / African elephants (Loxodonta africana), two adults and a calf, in the Samburu Reserve, Kenya. Cropped image.

Jen Guyton / East African black mud turtle (Pelusios subniger) in seasonal pond. Gorongosa National Park, Mozambique. Cropped image

Jen Guyton / East African black mud turtle (Pelusios subniger) in seasonal pond. Gorongosa National Park, Mozambique. Cropped image

Jen Guyton / East African black mud turtle (Pelusios subniger) in seasonal pond. Gorongosa National Park, Mozambique. Cropped image

Jen Guyton / East African black mud turtle (Pelusios subniger) in seasonal pond. Gorongosa National Park, Mozambique. Cropped image

Jen Guyton / East African black mud turtle (Pelusios subniger) in seasonal pond. Gorongosa National Park, Mozambique. Cropped image