Ruminant animals such as cattle, goats, sheep, and llamas "chew cud" in order to process the food for further digestion. The initial chewing of the forage and the initial bacterial softening in the first stomach compartment do not fully process the food so it can be digested. The larger parts are regurgitated as a bolus ("cud") to be further ground down and mixed with more saliva, then sent down to the other three stomach compartments.
Monogastric animals such as dogs or pigs do not chew cud.
Cows don't chew cheese. They're herbivores, they chew grass and hay and such, and chew, when they're sitting around and relaxed, partly digested forage matter that they regurgitated from their reticulo-rumen tract called cud. Milk is produced from cows (normally for their calves, but in the case of dairy cows, for human consumption), and the fatty content of milk is made into cheese and other creamy dairy products like ice cream, yogurt, and butter.
Because they want to or feel like it.
No.
Grass is really hard to digest so they have to chew down the cell wall of the plant to digest it otherwise it'll come out exactly the way it was when it was eaten.
Yes, to chew their cud.
This is called lying down, cattle do not sit down as their bodies are not built to sit. They lie down as they are resting, cattle will only chew their cud when they are relaxed. They will also digest standing up as well.
No.
no
Cows can chew their cud approximately 30,000 to 50,000 times a day. This process, known as rumination, involves chewing food multiple times to aid digestion. Cows spend around 8 hours a day chewing, which helps break down fibrous plant material and extract nutrients efficiently.
Yes, though they like to stand around and ruminate (chew their cud) for a while first before they lay down to take a nap.
No. They chew partly digested forage (like grass, hay and silage), not "spit."
When cattleappear to be chewing they are doing exactly that, although I think you are referring to when cattle are chewing their "cud". Cattle regurgitate a small portion of food, known as their cud, and chew on it.