Bear cubs get more motherly love when their moms are protected from hunters

This survival strategy became more common over time. In the first decade after the pioneering family was found, litters with longer childhoods were seen only every other year. But since 2005, at least one such litter was found every year. In 2009 and 2010, more than two-thirds of observed litters were raised this way, though that level of popularity didn't last.

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http://www.latimes.com/science/sciencenow/la-sci-sn-bear-mothers-hunting-20180327-story.html

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