Evidence of Scrat

Russian Scientists Grow Pleistocene-Era Plants From Seeds  Buried By Squirrels 30,000 Years Ago.

This is way cool IMHO.  When these little seeds were bornded, Smilodon (the Sabertooth) and Mammuthus primigenius (Woolly Mammoth) were walking along the earth.

And, some where, a frozen Scrat is twitching in his iceblock....