Ice Ages
Terror birds survived millions of years longer than thought
Why this mystery about the ancient Americas has sparked a debate
Scientists record coldest ocean temperature in Earth's history
Woolly rhino genome recovered from frozen wolf's stomach
World’s longest woolly rhino horn discovered in Siberia
The world’s first saber-toothed cat mummy has been found in Siberia
The Little Ice Age was brutal. How did people survive?
An asteroid may have turned ancient Earth into a snowball
The ocean has a 'conveyer belt.' Here's why it's important.
An astonishing—and accidental—Ice Age cave discovery
Ice Age mammoth’s life story reconstructed in stunning detail
Humans have ‘stressed out’ Earth far longer, and more dramatically, than realized
Did the Amazon rainforest contribute to the ‘Little Ice Age’ of the 1600s?
The real story behind the world’s ‘wandering rocks’
Rare 'glacier bears' with bluish fur may face grim future
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