Traditional animal skin leathers? Those are dinosaurs. Enter "leather" made from the lab-grown skin of a T-Rex, which a group of companies and bioresearchers say they'll use to fashion luxury, "cruelty-free" purses.

Though, some scientists are saying that these products will be more trickery than tyrannosaur. Did T-rex Arms Shrink to Avoid Becoming Finger Foods? Meet Rexy's Big, Bad Tyrannosaur Cousin, Tyrannosaurus mcraeensi Paleontologists Believe Billions of T-rexes Once Roamed North America Communications company VML,