For the same reason that you or any other animal use their neck for: to move their heads around and balance their heads in coordination to the rest of their body.
Cows generally prefer to be petted on their necks and backs.
Flamingo's have long necks because they use it for fighting enemy's by swinging their necks.
Giraffes use their necks in the same way we use ours. They are just longer.
A Mexican version of rodeo. Except they use horses instead of cows, and am to lasso their legs instead of their necks. They'll trip them over and over till the horse is so broken that they have to euthanize it. It's outlawed in the U.S.
they use their necks to get leaves from trees
yes cows do use their horns for fighting
Why do giraffe's have long necks? one fact they have long necks to reach high food from trees. 2. They use there long necks to fight, to see who get to get the female giraffe
Cows are herd animals, they stay together, mostly. If the farmer sticks a bell on the lead cow, he can find out where they all are by listening to the bell. Not much use on big, flat, open lands, but a real help in wooded terrain.
for getting food and to hid in places
Male giraffes are commonly referred to as "bulls." They are known for their distinctive features, such as their taller stature and thicker necks compared to females, which are called "cows." Bulls often engage in a behavior known as "necking," where they swing their necks to strike opponents in combat for dominance and mating rights.
None. Cows only use water to drink.
This is one way to hurt the animals by eating meat. The cows are processed. Their necks are split open when the are not even dead. Then the blood is drained out of their necks. They are also hung by their feet and get carried on a processing line. The chickens are put in a pool of water that is being electrocuted. They get zapped. They get fried and cut. More than 70% of chickens walk around with goop in their eyes, wings and they are sick.