The plague never really went away. Nearly seven centuries after the Black Death, the same bacterial species, Yersinia pestis, still infects people each year—3,248 reported cases worldwide from 2010 to ...
A loggerhead shrike does not eat every grasshopper it catches. Some are too toxic. Instead, the bird skewers them on thorns or barbed wire and waits, sometimes for two days, before returning to the ...
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