Secrets in the Ice

How the recovered fossilised remains of the giant penguin Crossvallia waiparensis, standing about five feet tall, provide new insights into prehistoric penguin evolution

How the recovered fossilised remains of the giant penguin Crossvallia waiparensis, standing about five feet tall, provide new insights into prehistoric penguin evolution

The Patagonian ice dragon, an insect that has adapted to life on the frozen glaciers of South America's Andes Mountains, one of Earth's harshest environments

The Patagonian ice dragon, an insect that has adapted to life on the frozen glaciers of South America's Andes Mountains, one of Earth's harshest environments

A Swiss fisherman uncovers ancient Celtic relics in Lake Neuchâtel, hinting at a violent Iron Age battle that happened around 225BCE

A Swiss fisherman uncovers ancient Celtic relics in Lake Neuchâtel, hinting at a violent Iron Age battle that happened around 225BCE

The lost legacy of the Donner Party, a group of nearly 90 emigrants who left Illinois in the spring of 1846, heading westward to California in covered wagons

The lost legacy of the Donner Party, a group of nearly 90 emigrants who left Illinois in the spring of 1846, heading westward to California in covered wagons

Great mysteries that were once frozen in time, here focusing on secrets now revealed of prehistoric warfare

Great mysteries that were once frozen in time, here focusing on secrets now revealed of prehistoric warfare

The lost legacy of the Donner Party, a group of nearly 90 emigrants who left Illinois in the spring of 1846, heading westward to California in covered wagons

The lost legacy of the Donner Party, a group of nearly 90 emigrants who left Illinois in the spring of 1846, heading westward to California in covered wagons

Great mysteries that have been frozen in time. This episode details the search for Janet Mae Johnson, a mountaineer who disappeared in 1973

How and why humans have become frozen in time, from missing Second World War aircraft to a frozen lake filled with human remains

The fate of a British South American Airways flight, which disappeared in a snowstorm on August 2 1947 en route from Buenos Aires to Chile

Preserved in the ice of Mexico's highest peak, a group of climbers stumbles upon the bizarre, mummified remains of a man in a pinstripe business suit

A salvage team discovers the mysterious remains of an enormous shipwreck near Cambridge Bay in the icy waters of the Canadian Arctic

Mountain climbers in California find the body of a US Army soldier, while strange bundles of canvas and wood are discovered on an Alaskan mountain

More fascinating history buried frozen in the ice, from the body of a legendary mountaineer to the discovery of a zombie virus

More secrets buried in ice, from an ancient mummy with fantastical tattoos buried in Siberia to the remains of a rare infant woolly rhino