One afternoon in the Artic, a father polar bear and his son were sitting in the snow. The little bear turned to his father and asked, "Dad, am I 100 percent polar bear?"

The father polar bear replied, "Of course, son, you're 100 percent polar bear."

A few minutes pass, and the son polar bear turns to his father again and says, "Dad, tell me the truth. I can take it. Am I 100 percent polar bear? No brown bear or panda bear or grizzly bear?"

The father polar bear replies, "Son, I'm 100 per cent polar bear, your mother is 100 per cent polar bear, so you are definitely 100 percent polar bear."

A few more minutes pass, and the son polar bear AGAIN turns to his father and says, "Dad, don't think your sparing my feelings if it's not true. I gotta know -- am I 100 percent polar bear?"

The father polar bear was distressed by this continued questioning and asked his son, "Why do you keep asking if you're 100 percent polar bear?"

"Because I'm freezing!"