The more intelligent members of the tribe put on their fur coats.

A passing wooly mammoth nodded his approval...
Bozo the Alpha Male vociferously questioned all scientific support for Global Warming...

A nearby Neanderthal assured us that Global Warming was bunk and that Al Gore would be extinct soon.
I, Bailey, She-Wolf and Shaman, went into my trance, channeling the crazed fury of my ancestors.
It was time for...