Pigs have a well-developed sense of smell. They are used to search for truffles or sniff out drugs on police duty.
An adult pig has 44 teeth, and the canines grow continuously throughout its life.
Have you ever heard the saying, "Don't buy a pig in a poke"? In 17th century England, it was common practice to try to sell a cat in a sack instead of a piglet to an unsuspecting buyer.
Scientists believe that pigs are smarter than monkeys and dolphins.
A pig gives birth to 8 to 12 piglets at a time.
The squeal of a pig can reach 115 decibels, 3 dB higher than the sound of a supersonic airliner.
Pigs do not have sweat glands, hence they sit in mud to keep themselves cool. The mud also provides protection against pig flies and parasites, and it also protects the skin from sunburn.
Pork is the most common meat in the world.
There are twice as many pigs as people in Denmark.
On average, pigs live for about 15 years.
An adult pig can drink up to 14 liters of water per day.