A pig is a mammal. You could have googled this faster than anyone on Quora could have answered you. Simply put, mammals are animals possessing vertebrae, mammary glands (which means they can produce milk), three middle ear bones, and hair. read more
Pigs, like all mammals including humans share the same basic features and traits. Pigs are warm blooded. They have males and females and reproduce like every other mammal. read more