The hunters searching for mammoth tusks were drawn to the steep riverbank by a deposit of ancient bones. To their astonishment, they discovered an Ice Age puppy's snout peeking out from the permafrost ...
A different roundworm, Caenorhabditis elegans, but one with important similarities to the revived species. Credit: Steve Gschmeissner / Science Photo Library via Getty Images In the movie Encino Man, ...
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