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TIL North American beavers have 40 chromosomes, while European beavers have 48. The two species are not genetically compatible. Only one stillborn kit was born of attempted hybridization.

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X07o6 TIL: That a bear’s closest relative is a seal.
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wLddM TIL the Japanese usually leave out most of their history from the early 1900s to WW2 from their high school curriculum.
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0d1BN TIL Bangladesh is the most populous country never to have won an Olympic medal