Board Thread:Warhammer 40k General Discussion/@comment-202.67.108.41-20140425072251/@comment-18016240-20150824155613

There's some speculation that the Carcharadons (Space Sharks) are descended from the Night Lords despite claiming to be descended from the Raven Guard.

Like the Raven Guard, the Carcharadons have defective glands that makes them lose the coloring of their skin as time goes on, but like the Night Lords their eyes get darker. They also use a lot of the same tactics as the Night Lords and are fond of darkness.