Hippos lived in Europe alongside mammoths and woolly rhinos during the last Ice Age, according to new research. Get any of our free email newsletters — news headlines, sports, arts & entertainment, ...

Hippos lived in Europe alongside mammoths and woolly rhinos during the last Ice Age, according to new research. Detailed analysis of bone finds shows that the heat-loving semi-aquatic mammals ...

A pair of 14,000-year-old "puppies" found melting out of the permafrost in Siberia have undergone genetic testing, proving they were actually wolf cub sisters and not domesticated dogs as was ...