There was this very puzzled young polar bear in Alaska. He goes up to his mom.
Junior- Mom Mom..!!
Mum   - Yes son?
Junior- Are you sure im a polar bear mom?
Mum   - Y yes of course son.
Junior- Are you sure im not a brown bear...or a grizzly bear, or a koala bear, o
r
        maybe even a panda bear.???
Mum   - No son your a polar bear my boy.
Junior- Oh ok..

Junior still puzzled approaches his father.

Junior- Dad are you sure im a polar bear dad???
Dad   - Yes your a ploar bear son.
Junior- Are you  sure im not a brown bear...or a grizzly bear, or a koala
        bear, or maybe even a panda bear.???
Dad   - No son your a polar bear.. Why do you ask ???
Junior- COS IM FUCKIN FREZZING MY ASS OFF!!