Summary of the text:Pigs have a reputation for being dull and dirty, but they are actually curious and intelligent animals. Their intelligence is so keen that they need to do something only once to know how to do it again. They are also no dirtier than any other farm animal, and they seek out water in order to cool off. On a farm, the water is usually in a mud puddle, but a pig would be just as happy splashing in a bathtub.