A pig is incapable of looking up at the sky and is designed to look
mainly downward for scavenging being unable to raise it's head above
shoulder level.

Elephants are the only animal that can't jump, due to their massive
weight.

Frank is special in that he is incapable of pulling his head out of
his ass where it has been lodged since birth, or maybe he was hatched.
More likely he just crawled out from under some rock leaving a trail
of slime behind him.

Easy...they're both pigs...hahaha!