Photo of the day

Chris Apassingok and Nalu "Danielle" Apassingok looking for seals. This is from First Alaskans.

Africa's most famous river, the Nile, snakes for 4000 miles (6400kms) through some of the continent's driest lands. This is from Wild 24 II.

San Diego Wreck. The wreck of the San Diego, a 17th Century Spanish Manila Galleon which sank just outside Manila Bay in the Philippines. In the foreground are some of the many ceramic jars that surrounded the wreck and which contained packaged goods ready for sale. This is from The Myth of the Pirate Ship: Drain the Oceans.

Adelie penguins often enter the water in groups in order to evade predators. This is from Wild 24 II.

Jody Potts-Joseph looking over the snow covered mountains in search of a caribou while hunting with her son. This is from First Alaskans.

Two Adelie penguins. This is from Wild 24 II.

Puffins on the rocks on St. This is from First Alaskans.

Crossing waterways is an extremely dangerous activity for wildebeest which must battle hungry huge Nile crocodiles and avoid being squashed by their own kind. This is from Wild 24 II.

Jessie Holmes setting squirrel traps. This is from Life Below Zero.

A green sea turtle waits for nightfall before heading ashore to lay her eggs. This is from Wild 24 II.

Octavio Jacobo Fernandez and Ines Galindo walking through the smoldering terrain. This is from Canary Islands: Born of Fire.

The Dingo will hunt alone but also in a pack. This is from Wild 24 II.

Launch of STS-51L, the Space Shuttle Challenger, at 11:38 a.m. EST on January 28, 1986. This is from Challenger: Disaster tapes.

The diminishing waterways of the dry season means that the plentiful fish are easy prey. This is from Wild 24 II.

REENACTMENT - The pilots of Atlas Air Flight 3591 fight desperately to recover their plane as it plummets toward the marshy waters of Trinity Bay near Houston, Texas. This is from Air Crash Investigation.

Caimans are one of Brazil's top predators, and the dry season is a time of plenty. This is from Wild 24 II.

REENACTMENT - While en route to Houston, the pilots of Atlas Air Flight 3591 are forced to divert west to avoid heavy precipitation in their path. This is from Air Crash Investigation.

The Galapagos' marine iguanas must soak up several hours of sunshine before they have the energy to brave the sometimes frigid waters around the islands. This is from Wild 24 II.

An extinct volcano crater with sulfur remnants. This is from Canary Islands: Born of Fire.

Often called the King of the Jungle, big male lions are actually Kings of the Savannah, their natural territory. This is from Wild 24.

An aerial view of lava advancing and burning houses. This is from Canary Islands: Born of Fire.

The diminishing waterways of the dry season means that the plentiful fish are easy prey. This is from Wild 24.

Rivers of lava fall into the sea. This is from Canary Islands: Born of Fire.

Jody Potts-Joseph looking over the mountain ranges. This is from First Alaskans.

The rare Ethiopian wolf lives near the Blue Nile predating on giant mole rats. Unlike most canines that hunt by smell, this wolf uses sound to find its underground prey. This is from Wild 24.

Chris Apassingok and Nalu "Danielle" Apassingok looking for seals. This is from First Alaskans.

The courtship dances of Band-Tailed Manakins are a real eye-catcher. This is from Wild Argentina.

A view of a volcano crater erupting with lava flowing down the mountain. This is from Canary Islands: Born of Fire.

Agnes Hailstone sewing a teepee together. This is from Life Below Zero.

At over 4 meters (13 feet) long, the yellow anaconda is Argentina's largest snake. This is from Wild Argentina.

A view of a volcanic eruption with lava falling down the mountainside. This is from Canary Islands: Born of Fire