May 12, 2017

Trump tells The Economist he invented the phrase “prime the pump”—which dates to the early 19th century. / The Hill

A medical quiz on the symptoms, etiologies, and treatments for the diseases in Oregon Trail. / STAT

Significantly more infants in the US are being born with hepatitis C—a result of the continuing heroin epidemic. / BuzzFeed

To celebrate springtime: a floral time-lapse that took three years to make. / Vimeo

See also: “Fall.” / Vimeo