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========== This video was brought to you by you. Hi, this is Emily from MinuteEarth. For the red squirrels of Canada’s Yukon
territory, 2010 was an extra busy year. Every fall, the squirrels gather seed-cones
from white spruce trees and hoard them underground for later, and most years each tree produces
around a hundred cones. But in 2010, all the white spruces in the
region cranked their cone-making way up, producing almost three thousand cones each. This wasn’t a freak event – it’s a phenomenon
called masting, in which all the plants of a particular species in an area go totally
nuts in a big baby-making bonanza. Which is weird... how can trees coordinate
with each other over hundreds of miles? And why do they go to the effort? Well, they can’t talk over long distances,
so we think they’re all ...