Head lice are small, wingless insects that live in human hair. Their scientific name is Pediculus humanus capitis, and they have been a human pest for thousands of years. Their full life cycle, from ...
CC0 Usage Conditions ApplyClick for more information. Meet Dr. Eric Schuettpelz, a botanist who studies ferns and fern biodiversity at the Smithsonian's National Museum of Natural History. During this ...
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