BBC

Adam Oswell wins the Photojournalism award for this picture which shows zoo visitors in Thailand watching a young elephant perform underwater. Elephant tourism has increased across Asia. In Thailand, there are now more elephants in captivity than in the wild.

Brent Stirton was awarded the Photojournalist Story Award. His sequence of images profiles a rehabilitation centre caring for chimpanzees orphaned by the bushmeat trade in Africa. The director of the centre is seen introducing a newly rescued chimp to others in her care.

More than 20 polar bears took over Kolyuchin Island, Russia which has been abandoned since 1992, in search of food. With climate change reducing sea ice, polar bears are finding hunting more difficult, pushing them closer to human settlements to scavenge. A low-noise drone was used to capture the striking image.