The IQ of pigs is equivalent to that of a human being about three years old. They are relatively smart. Pigs have very strong learning and memory abilities. After training, pigs can quickly learn some skills. Pigs' sense of smell is also very sensitive, even better than that of dogs. Class; some smart pigs will cooperate with each other to do some things, and pigs are also very emotional and will feel the same way.

Pigs not only have a high IQ, but also have a strong sense of smell. Their olfactory sensitivity is 2-3 times that of dogs. They are very sensitive to smells and can even smell landmines buried underground.