There is nothing special about the way cows chew. The only thing that may seem special is that, when they eat, they first eat the grass or hay whole then, when full and resting, regurgitate it to chew it as cud.
Chickens do not have hooves at all and do not chew their cud. They are however considered to be Kosher animals according to Jewish tradition.
Deer, Cows, Sheep. All animals that chew the cud.
Deer, Cows, Sheep. All animals that chew the cud.
Deer, Cows, Sheep. All animals that chew the cud.
Yes. Bongos chew their cud.
Pork isn't kosher because the pig doesn't not chew a cud. In Genesis, at the end of the antediluvian period, the end of the flood, g-d gives Noah and his offspring permission to eat from the animals of the earth with the condition that the terrestrial animals have 'split hooves' and 'chew a cud.'
Sheep, goats, deer, cattle, etc.
No. Pigs are not ruminant; none of them chew cud.
Cows, and any animals that chew cud (ruminants), have a four chambered stomach. Horses do not chew cud and only have a one-chambered stomach. (pseudo-ruminant monogastrics.)
Cud is regurgitated food mostly in cattle that chew it up again and again to break down hay, grain, etc. Animals that chew their cud include cattle, goats, sheep, giraffes, bison, yaks, water buffalo, deer, camels, alpacas, llamas, wildebeest, antelope, pronghorn, and nilgai.
Yes, like the cow, the bison regurgitate their food. Yes, Bison chew cud.
JudaismThe Torah specifies that only animals that are cloven-footed (split hooves) and chew their cud are fit for eating. Pigs are cloven-footed, but don't chew their cud, so pork is not considered kosher.