DNA confirms a weird Greenland whale was a narwhal-beluga hybrid
Genetic analysis of the animal’s skull shows it had a narwhal mom and beluga dad

TELLTALE TEETH The skull of an unusual whale (center) killed decades ago resembles a cross between a beluga whale (right) and a narwhal (left). A genetic study confirms that the animal is a beluga-narwhal hybrid.
Mikkel Høegh Post/Natural History Museum of Denmark