His latest study is this skull bone of ceratosaurus , a large predatory dinosaur.

VOA: standard.2009.12.08

"This is a helluva walrus, " says Myhrvold jauntily, trying unsuccessfully to lift the large skull out of its box.

FORBES: The Intense Dilettante

The law also banned other conspicuous religious symbols including Sikh turbans, large Christian crucifixes and Jewish skull caps.

CNN: Al Qaeda threatens France for perceived anti-burqa stance

In particular, a large wound at the base of his skull seemed likely to have been made by a blade like a halberd.

CNN: February 4, 2013 -- Updated 1805 GMT (0205 HKT)