A polar bear comes home from school and asks his mother,"Mom, am I really a polar bear?"
"yes, dear, now eat your dinner and get to bed; you've got school tomorrow." replied the mother.
The next day after school the polar bear asked,"Mom, are you and dad really polar bears?"
"Yes," She said, "now do your homework and get to bed,you've got school."
The next day: "Mom, are all my grandparents really polar bears?"
"Yes, yes, now eat and get to bed." said mom.
Once again the little bear came home from school and asked,"Are ALL my ancestors, on both sides of the family tree, really polar bears?"
"Yes, YES! we're all polar bears! You've been bugging me about this all week. What's wrong?" asked the perplexed mother.
"I just need to know that I'm 100% pure polar bear." said the bear.
"Yes! You are!! Why?!"
"'Cause I'm fuckin' freezin'!!"