During photosynthesis, plants use quantum mechanical processes. To understand how plants do this, scientists at the University of Chicago recently recreated how leaves work at the molecular level. They were overwhelmed by what they saw. It turns out that plants behave like a strange fifth state of matter, a Bose-Einstein condensate. What's even stranger is that these condensates are typically found at temperatures close to absolute zero, whereas in plants it occurs at normal ambient temperatures.
See also
https://www.sciencealert.com/bose-einstein-condensate
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