The human genome is made up of 23 pairs of chromosomes, the biological blueprints that make humans … well, human. But it turns out that some of our DNA — about 8% — are the remnants of ancient viruses ...
With the help of their stuffed animals or figurines, many toddlers and preschoolers play “teacher,” “doctor” or “firefighter,” drawing early inspiration from the careers they observe in their ...
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