Although pigs are commonly believed to be dirty they aren't. Actually if given the chance they would rather be clean. Scientist revealed that pigs are happiest when they are clean. The term dirty as a pig came to be since like to bath itself on mad. But they do so to stay cool and gets rid of parasites and ease the pain of insect bites. Although usually confined to the dirtiest part of a farm it still does it best to stay clean.
Their are about 2 billion domestic pigs on the planet
Check this out. Pigs are the 4th most intelligent animals in the 1st are the apes, 2nd are dolphins, 3rd elephants and 4th are pigs. This makes them much smarter than a dog and can learn new tricks right away.
THIS WORD
Porcicide: the killing of a pig