Researchers created 3D scans of cats’ tongues to create a video showing how “sharp, tiny cones on cats’ tongues give their coats and skin a deep clean, instead of merely spreading their spit around” and explaining how cats exploit the use of surface tension to keep themselves clean: “Slow-motion footage of several housecats grooming revealed the felines flared their tongues outward as if taking a big lick of an ice cream cone so the papillae stood perpendicular as they move through the fur.” Read article