FlipFact of the Day: Changes in the weather can be detected by people with a keen sense of smell. The common odors that we catch a whiff of before, during, and after a storm are ozone (which smells somewhat like chlorine), petrichor (that sweet, grassy “rain-on-pavement” smell), and geosmin (the smell of damp earth, created by certain bacteria), respectively.
Today’s Science History Milestone: On July 17, 1959, paleoanthropologist Mary Leakey discovered a fossilized skull at Olduvai Gorge in Tanzania. It turned out to be the first specimen of Paranthropus boisei (a.k.a. Australopithecus boisei), an ancient hominin species that lived in eastern Africa, 2.3-1.2 million years ago.
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