[Torie]

I did blow it about the ice age though. I was just transfixed at how resilent T Rex was, in this case with cold. It was warm blooded, and a quite hyperactive and smart beast, folks think now, as I recall.

[jpsb]

I've read that a few experts lean toward TRex being kindof warm blooded. If so it could survive old, it's body was certainly big enough to generate and maintain heat, but it would need hair or something to keep the heat from dissipating.