Pearls Before Swine is a cartoon that's mainly based around two characters - Pig and Rat.

Rat is arrogant, philosophical and self-centered. Rat's personality is apparently the one which most closely matches that of the author, by his own admission. Rat spends his time with the intellectually inferior pig because no-one else wants to hang around with him.

Pig is a little slow of the brain, humble and kind. His relationship with Rat is perhaps one of the opposites attract kind, or perhaps he admires Rat's outgoing schemes.

Other characters include a smart goat, and a zebra who spends his time trying to find ways to protect his species against predators such as lions, including a plan to arm his friends with automatic weapons.

The strip is produced by Stephan Pastis, who was raised in California.