Photo of the day

Landscape with purple colours, mountains, forest and snowfield. South Ural, Russia. This image is from Siberia's Wild Year.

Limpopo, South Africa: Earl. This image is from Little Monkey House.

El Hierro, Spain: Underwater cameraman. This image is from The New Sperm Whale .

Volcanoes National Park, Rwanda: Young gorilla face in mothers arms in the mountains. This image is from Dian Fossey: Secrets in the Mist.

Canada, Homer, AK: Alpacas at Arla Ranch. This image is from Dr. Oakley: Yukon Vet.

Social climbing. This image is from Who's Aping Who?

Siberia: In winter, reindeer dig through the snow in search of carbohydrate rich lichens called reindeer moss. This image is from Siberia's Wild Year.

Jerusalem, Israel: Dome of the Rock, iconic church in Jerusalem. This image is from Secrets of Christ’s Tomb: Explorer Special.

Titanic being pulled out to sea in Belfast. This image is from Titanic's Fatal Fire.

Volcanoes National Park, Rwanda: Young gorilla face in the mountains. This image is from Dian Fossey: Secrets in the Mist.

Canada, Vancouver, BC: A harbour seal pup at the Vancouver Aquarium Marine Mammal Rescue Center. This image is from Dr. Oakley: Yukon Vet.

Limpopo, South Africa: Kate sits on a branch in Disneyland on one of her first days at the Vervet Monkey Foundation. This image is from Little Monkey House.

(L to R) James Cameron and Bob Ballard. Titanic at the Reagan Library. This image is from Titanic: 20 Years Later with James Cameron.

Bringing up baby. This image is from Who's Aping Who?

California: Ranger John Cantwell, National Parks Service. This image is from Drain Alcatraz.

Siberia: Red crowned cranes pair for life and each spring they renew their bond by performing a courtship dance. This image is from Siberia's Wild Year.

Dian Fossey holds a mountain gorilla that she nursed back to health. This image is from Dian Fossey: Secrets in the Mist.

Chile: A Killer Whale surfaces. This image is from The New Sperm Whale .

Northern Territory, Australia: Sunset in the Northern Territory. This image is from Monster Croc Wrangler.

Vancouver, BC: A baby otter receives a checkup at the Vancouver Aquarium Marine Mammal Rescue Center. This image is from Dr. Oakley: Yukon Vet.

California: Cliffs on the western side of Alcatraz Island. This image is from Drain Alcatraz.

Limpopo, South Africa: (L to R) Dudley chews on a carrot in Disneyland while Korigan watches. This image is from Little Monkey House.

Canary Islands, Spain: Dolphins jumping out of the water. This image is from The New Sperm Whale .

Dian Fossey in the wild with Mountain Gorillas. This image is from Dian Fossey: Secrets in the Mist.

Siberia: Pacific walruses migrate north during spring and as many as 20,000 haul out along Siberia's coast. This image is from Siberia's Wild Year.

Horse eating with Dr. Oakley and Sierra in background. This image is from Dr. Oakley: Yukon Vet.

California: Alcatraz Prison. This image is from Drain Alcatraz.

Titanic in Belfast. This image is from Titanic's Fatal Fire.

Yukon Territory, Canada: Sheep at Honey Hill Farm. This image is from Dr. Oakley: Yukon Vet.

Dian Fossey plays with two young mountain gorillas in the wild. This image is from Dian Fossey: Secrets in the Mist.

Northern Territory, Australia: Jono takes a moment to watch the setting sun. This image is from Monster Croc Wrangler.