At a time in the distant past, trees on Earth grew in a year-round warm environment, but over time adapted to thrive in colder climates as well. What were the physiological changes that trees went through that allows them to survive the cold? YouTube channel MinuteEarth discusses how trees adapted to survive in today’s video.
How do Trees Survive Winter? [YouTube]
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via How-To Geek http://www.howtogeek.com/180790/how-do-trees-survive-winter/