A new study reveals that a prehistoric sea cow was preyed upon by two different carnivores: a crocodile and a shark.

If you'd like to flaunt those rules, though, modder Doomdiverr's freshly-released 'Hd2 Cow boys helmets' looks ... as well as possibly painting a skull where your face should be, for some estra ...

The vertebrate skull varies widely in shape, accommodating diverse strategies of feeding and predation. The braincase is composed of several flat bones that meet at flexible joints called sutures.