For humans, feces are last on the list of things we’d place near our mouth. In the animal world, that reaction does not ...
Like most mammals, humans are diphyodont: We have two sets of teeth – baby teeth and adult teeth. The technical term for our baby teeth is deciduous teeth because they fall out, the same way deciduous ...
Morning Overview on MSN
North America’s most dangerous bear vanished for a chilling reason
Long before hikers worried about grizzlies on North American trails, an even more intimidating predator ruled the continent.
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