A large-scale experiment shows that warmth brings bees and wasps out of hibernation earlier—leaving some of them with poorer starting conditions. This is particularly true for species in cooler ...
Bald eagle Rosa stopped incubating her two eggs on Feb. 23, nine days after laying the first egg in the Dulles Greenway Wetlands in Virginia, a nonprofit said. Screengrab from the Dulles Greenway ...
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