Cattle have four stomachs.

The stomach of a cow consists of four chambers, namely the rumen, reticulum, retex, and rumen. The main function of the "rumen" is to store feed and microbial fermentation, which can help to degrade the ability of fibrous material and promote digestion.

The main function of the mesh stomach is like a sieve. When cows graze, they will inevitably eat wires and nails, and the mesh stomach mainly plays a filtering role. The main function of the "heavy stomach" is to absorb the water in the feed and squeeze and grind the feed, retain the rough part of the food, continue to grind it, and transport the thinner part into the wrinkled stomach.

"Wrinkled stomach", known as the true meaning of the cattle stomach, its main function is the digestive glands, can secrete digestive enzymes; secretion of digestive juices, so that the food becomes wet, the digestive juices contain enzymes, can be digested part of the protein, basically do not digest the fat, cellulose or starch; and undigested material through the large intestine to the outside of the body.

Symbolism of the cow:

The cow can be seen in many myths, and some myths use the cow as the origin of the world or of mankind; for example, in Norse mythology, Eumyr, the ancestor of the frost giants, was nursed by a cow named Oodumbra.

The image of the bull is also sometimes associated with savagery and brutality; in Greek mythology, Zeus transformed into a bull to abduct Europa, while the Minotaur, the monster of the labyrinths of Crete, was a half-bull, half-human demon.

And Chinese legend has it that the "ox-head and horse-face" are famously known as the ghostbusters of the underworld. The ghost city of Fengdu, as well as city god temples all over the world, have images of ox head and horse face. Ox-head originated from Buddhism. Bull head is also called A Pong, its shape for the bull-headed man, holding a steel fork , the force can row mountains.