Bear hibernation is a superpower, but it comes with a cost

Welcome to Fat Bear Week at Mashable! Each fall, Katmai National Park holds a competition as Alaska’s brown bears finish fattening up for their long winter hibernation. This year, Mashable is getting in on the salmon-munching action. Check back with us all week as we follow the fat bear face-offs each day, and remember to get your votes in for each round. Happy fishing!

---

Some bears hibernate in hollowed out tree-trunks. Some take a months-long rest beneath thick brambles and brush. Others dig into the hills to forge snug dens. And still others discover caves to hide away from the biting winter chill. Read more...

More about Science, Animals, Bears, Katmai National Park, and Fat Bear Week

from Mashable https://ift.tt/2Qym97f