Pigs have a very high IQ, second only to gorillas. Scientists have done an experiment in which pigs and dogs learn to pull carts together. Pigs learn to pull carts once, while dogs learn ten times. After training, pigs can also do arithmetic, adding, subtracting, multiplying and dividing within ten can all be answered correctly. Specially trained pigs can dance, play drums and swim.

Pig, the symbol of wealth. Pig has the name of "black gold". For the ancients, pig is not only an important living resource, but also a symbol of wealth. Two thousand years ago, pigs were the same as houses and cars today.

Pig, the pronoun of bravery. Wild boar is fierce and good at fighting, which symbolizes bravery and courage. Pig is the most important prototype of prehistoric dragon. The earliest dragon head is the shape of pig head. People's bravery is measured by pigs. The word "dare" means catching pigs with bare hands to show bravery.

Source: @aleksartee