Like all animals, cows form strong maternal bonds with their calves, and on dairy farms and cattle ranches, mother cows can be heard frantically crying out for their calves for several days after they have been separated. They prefer to spend their time together, and they form complex relationships, very much like dogs form packs.
Cows were traded from Europe as cattle, food, and sale.An intended consequence would be that the cows started to repopulate. Unintended consequence would be that they are starting to eliminate forests and rain forests to. Ale room for forests.