Photo of the day

Coral reefs are some of the most diverse and valuable ecosystems on Earth and support more species per unit area than any other marine environment. Scientists estimate that there may be another 1 to 8 million undiscovered species of organisms living in a

The moon hangs over Mauna Loa, Hawaii. This image is from Most Amazing Photos.

Pacific walruses travel according to the movement of the ice. As the ice expands in the winter, they move south. As it breaks up and retreats in the spring and summer, they move north again. This image is from Great Migrations.

Waves crash violently against the Tocopilla shores of Chile. This image is from Geologic Journey.

The Sable is famous for its fur and was hunted everywhere in Russia. This image is from Wild Russia.

Along the coasts of Ussuriland , the endless Siberian forests give way to an exotic Asian coastline. This image is from Wild Russia.

Blakiston's fish Owls are extremely rare - probably not more than 1000 birds still exist in the wild. The wild rivers of Ussuriland offer a good habitat. This image is from Wild Russia.

Historian William Lindesay treks the landscape along the Great Wall of China. This image is from Trekking The Great Wall .

Mudmen from the Waghi Valley Area pose in the shrubbery. Body painting with mud is one of many indigenous traditions still alive in Papua New Guinea. This image is from Most Amazing Photos.

A scuba diver explores a cave near Kona, Hawaii. This image is from Most Amazing Photos.

The mix of ancient and modern mosques in Pakistan's capital city Lahore echoes a general mosaic of old and new. This image is from Most Amazing Photos.

A family in Afghanistan walks along the roadside. This image is from Most Amazing Photos.

Historian William Lindesay walks along the Great Wall of China. This image is from Trekking The Great Wall .

Borneo- Orangutans are the only ape and the largest mammal that live exclusively in trees. This image is from Great Migrations.

A grouper swims in a coral reef ecosystem in a hidden paradise called Shark Eden. This image is from Shark Eden.

When the Siberian winter ends the first polar bear mothers (with their young) appear from their dens. This image is from Wild Russia.

Lava from the eruption of Kilauea drips into the sea near Kalapana, Hawaii. This image is from Most Amazing Photos.

Foxes don't hibernate. They grow thicker seasonal fur to survive plummeting temperatures on Russia's Kamchatka peninsula. This image is from Wild Russia.

The black-browed albatross soars in on its 8-foot wingspan to mate on land at Falkland Islands. This image is from Great Migrations.

When other animals are out hunting, the toad-headed agama usually takes cover but it can also be a fierce fighter. This image is from Wild Russia.

In Ethiopia, Erta Ale's lava lake is alive at night. This image is from Geologic Journey.

The peninsula of Kamchatka in Russia's Far East is a dramatic landscape where fire and ice meet. Lava-spitting volcanoes reign here. This image is from Wild Russia.

Maasai warriors stand tall with their spears. This image is from Warrior Road Trip.

A Brydes whale with it's mouth wide open feeds off sardines in a baitball in Port Edwards, South Africa. This image is from Cameramen Who Dare .

Giant moai statues on ahu platform on Easter Island. This image is from Beneath Easter Island .

Cameraman Mark Rackley filmed alligators in Florida's Everglades without any protective clothing. This image is from Cameramen Who Dare.

Every autumn chipmunks in Siberia collect pine seeds to survive the winter. This image is from Wild Russia.

At Jellyfish Lake in Palau five million jellyfish glide across the lakes surface each day in a stunning daily migration. This image is from Great Migrations.

Five meerkats sun at the burrow at sunrise, Kuruman River Reserve. This image is from Clan of the Meerkats.