Pig

Pigs are very intelligent and learn quickly. They pick up tricks faster than dogs. Pigs rank #4 in animal intelligence behind chimpanzees, dolphins, and elephants. Piglets learn their names by two to three weeks of age and respond when called.

Pigs are very social animals. They form close bonds with each other and other species. Pigs enjoy close contact and will lie close together when resting. Pigs use their grunts to communicate with each other.