Hard to say why. It's most likely because they're a popular source of meat and milk, and also great for using as draft purposes because of their strength and docility.
No. Bulls impregnate "Earth-Cows" which are Earth-bound as well.
No. Cows exist only on Earth, not in space.
everywhere
No, only birds and earth worms have gizzards.
If it is not recycled then yes i think it does effect the earth... plastic can kill up to 400 cows a year from cows eating and getting the "wiff" that plastic gives off.
No. They'd have to take over humans in order to do that.
Sunrise Earth - 2004 Milk Cows in the Morning 1-19 was released on: USA: 21 October 2004
Cows are wonderful animals. They are on Earth to live, they are used as sources of food or money, to help with farming, and sometimes even as pets.
Because that is the efficient way. We are the Lords of Earth and the cows are our b*tches. Deal with it.
cows breaking wind
Then you snap their legs and laugh at them
Because there was cows all over the Earth.