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Science Friday is your trusted source for news and entertaining stories about science.

Why Do Cyclists Shave Their Legs?

Does it make you faster—or just help you fit in? We asked four cycling experts what leg-shaving actually does for athletes.

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Instead Of A Vaccine For Lyme, How About A Vaccine For Ticks?

When ticks bite us, they release thousands of proteins through their saliva. Could a vaccine for the right ones stop ticks from latching on?

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The Story of Saliva

Why do newborns drool excessively? How many pints of saliva does a person generate daily? (Hint, it’s more than one.) And more spit mysteries excerpted from “Gulp: Adventures Down the Alimentary Canal.”

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Pi Day Mashup

It’s Pi Day (and Einstein’s birthday). Celebrate with this mix of tributes to the telltale Greek letter that symbolizes that endless number.

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