The report of this meat-eating sponge reveals a number of overlooked traits in the jaw and teeth that clearly and specifically link the sponge to the Neanderthals and Cro-Magnons. One such trait is the shape of the opening of the nerve canal in the lower jaw, a spot where dentists often give a pain-blocking injection. In the case of the deep-sea, meat-eating sponge, the upper portion of the opening is covered by a broad bony ridge, a curious feature also carried by a significant number of Cro-Magnons and Neanderthals.
The report is more fully covered in the book, Man and Sponge at Yale by Brigham Indie Shreeves.
You laugh, but watch me do it!!!