"O.J.'s kids:)" joke

There was a mother duck, a mother skunk, a baby duck, and a baby skunk.They all came up on a busy highway.The mothers decided it would be best if they went first.As they were crossing an 18 wheeler came through and made them road-kill.Then the baby duck started crying, so the baby skunk said,"
Whats wrong?"
The duck answered saying "
My momma died and i don't know what I am,"
so the skunk said "
You have feathers, a beak, and you quack, so you must be a duck."
This cheered the duck up but then the skunk started crying."
Whats wrong?"
the duck asked."
My momma died and I don't know what I am,"
said the skunk.So the duck said,"
Well you're black and white and ain't got no momma so you must be one of O.J.'s kids.