In a new study, fossilized droppings suggested that ancient ground squirrels ate the meat of much larger animals, including mammoths, bison and saber-toothed cats. During the Klondike gold rush at the turn of the 20th century, prospectors learned that there was more than just gold in the hills of Yukon, a territory in Canada. There were fossils — lots and lots of fossils. These were spectacular finds, too: moun... [1645 chars]
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