Baby polar bear goes up to his mother and ask her, "Mother, am I real polar bear?"
Mother says,"Of course you are son. What an odd question. Why would you ask that?"
Baby says, "Don't worry mom. I just needed to make sure."
A few days later the baby polar bear goes to his father and ask, "Dad, am I a real polar bear?"
His dad exclaims, "Don't be stupid! Of course you're a real polar bear! Jeeze, son, you and your strange questions!"
A few days later the whole family is sitting at the table having dinner when the baby speaks up, "Mom, dad, I know I already asked, but I need to be sure. Are both of you absolutely sure I'm a real polar bear? Are you totally totally positive?"
The mother and father both aghast shout at him, "Of course you're a real polar bear! Why on earth would you think you weren't a real polar bear!?"
And the baby says, "Because I'm fucking freezing."