Urban expansion brings wildlife closer to people, creating new pathways for viruses to spread from animals into human communities.
Geoscientists say Earth will be home to one massive supercontinent about 200 million years from now; there are four prominent versions of this mega-continent. The climate might be surprisingly balmy ...
Many animals touch noses, beaks, or mouths, but science reveals these behaviors signal grooming, dominance, feeding, or even fights.
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