Sir Mick Jagger has a new animal named after him. Scientists have named an extinct swamp-dwelling creature that lived 19 million years ago in Africa after the Rolling Stones frontman, in honor of a trait they both share—their supersized lips. "We gave it the scientific name Jaggermeryx naida, which translates to 'Jagger's water nymph,'" said study co-author Ellen Miller of Wake Forest University. The animal's fossilized jaw bones suggest it was roughly the size of a small deer and akin to a cross between a slender hippo and a long-legged pig. Researchers uncovered the fossils—consisting of multiple jawbone fragments—amid the...