He found two skulls of this animal at the Grand Staircase-Escalante National Monument,in southern Utah.

VOA: special.2010.10.05

Peer past the stuffed bongo (a type of antelope, apparently) making its way through fake vegetation and you'll see two huge skulls on a coffee table.

BBC: Jack White's meaningful style

Two babies suffered fractured skulls.

MSN: 4 million baby seats recalled after injuries - Health - Children's health | NBC News

On his right wrist were two bracelets, one with crystal skulls and one with coral skulls.

WSJ: Opportunities for Geniuses