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13,600-Year-Old Mastodon Skull Found Preserved in Creek Bed—It May Have Been Killed by Men -
12-Year-Old Discovers Rare Tooth from Woolly Mammoth that Disappeared 4,000 Years Ago -
Elephant Loss Could Change Landscape Forever -
Scientists Add Woolly Mammoth DNA to Elephant Cells (Video) -
Fisherman Thinks he Hooked Woolly Mammoth Skull (Video) -
Woolly Mammoth Brain Found—Best Specimen in History