Science of Winter: Bears sleep through winter — but not as deeply as you'd think

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By Tom Spears, Ottawa Citizen, January 15, 2018

Today we continue our annual look at what makes this season special, a time when nature is doing much more than just turning dormant for three months. Welcome to the Science of Winter.

There’s hibernating and there’s hibernating among winter animals. In the cold season, black bears go to sleep, but not as deeply as you might think.

Here’s a hint. Mid-winter is not a safe time to decide the bear is asleep so you can poke it with a stick. It might wake up and object.

http://ottawacitizen.com/news/local-news/science-of-winter-bears-sleep-through-winter-but-not-as-deeply-as-youd-think