This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Reindeer herders in a Russian Arctic ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. Rachael has a degree in Zoology from the ...

Far below the surface of Mexico’s Yucatán Peninsula, a flooded labyrinth of limestone tunnels has quietly guarded one of the most haunting fossil troves of the Ice Age. In the darkness of a submerged ...

Introduction -- Crises in the history of life -- The Ice Age and the megafauna -- Cold case : the search for the Ice Age killer -- Northern Eurasia : woolly rhinos, cave bears, and giant deer -- North ...

An Ice Age giant was tumbling around North America during the Late Pleistocene. About the size of a bear, it was actually a kind of enormous sloth that had evolved to thrive in freezing conditions.