Andy Rouse / Grizzly bear (Ursus arctos horribilis) cub waking up, Katmai National Park, Alaska, USA, August 2010.

Ingo Arndt / Grizzly bear (Ursus arctos horribilis) mother with cubs digging for clams on tidal flats, Lake Clark National Park, Alaska, USA, September

Andy Rouse / Grizzly bear (Ursus arctos horribilis) chasing and catching a Sockeye salmon (Oncorhynchus nerka) Katmai National Park, Alaska, USA, August 2010.

Ammonite / Sloth bear (Melursus ursinus) digging for termites, footage taken at night using thermal camera technology, Yala National Park, Sri Lanka.