A mysterious new breed of whale has been discovered, after washing up on an Alaskan shore.
A whale corpse, more than seven-metres long, was discovered in 2014 and has helped researchers identify the new species.
It's believed the species lives in the in the Bering Sea between Japan and Alaska.
Phillip Morin, is a molecular geneticist, at the National Oceanic and Atmospheric Administration's Southwest Fisheries Science Center, who has been working on finding out what the whale is.
He talks to Jesse Mulligan about what he found out.