Even trees need their zzzzz's, say scientists

Christian Science Monitor | Science 

If a tree snores in the forest, does it make a sound? Ok, trees probably don't snore, but it turns out they might actually sleep, according to recent research. Most living organisms respond to the variations in temperature and light that come during the nighttime. A team of researchers from Austria, Finland, and Hungary have discovered that trees might also need their shut-eye. The researchers used laser scans and examined two different silver birch trees, one in Finland and one in Austria, to look for patterns.

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