Do cows adapt

Answer 1

A four-chambered stomach to better rely on just grass and hay throughout its life (all thanks to the rumen, a large fermentation vat that, along with millions of microflora that live in there, help break down the otherwise undigestible parts of plants like cellulose and lignin), Large body size to encompass the rumen, horns and/or a thick skull to better fend off predators with or compete for dominance (and breeding rights for bulls) with, strong anti-predator drive (some more than others) to protect themselves and their calves, strong herd-bound instinct making them easier to work with and able to keep together and keep a better eye out for threats, etc.

Answer 2

Their horns, if they have them, but mostly it's attributed to their aggressive nature that they can get if a predator (or even a human) decides to mess around with their young. Some cows can recognize that the two-legged kind aren't the ones to be nasty towards, but it's a different story towards the four-legged predators like bears, wolves, coyotes and dogs; other cows, though, can't distinguish the fact that humans are not a threat unlike bears, cougars, wolves, 'yotes and dogs are.

Answer 3

Yes, they can adapt.