Why did cows never acquire aggressive traits?

The assumption being made here is that the cow we see around us today is the same as what it has been for millions of years. In reality, the cow, like every other species, has undergone a lot of changes. And we don’t even have to go back millions of years to see aggressive cows. A mere ten thousand years will do.

Scientists have concluded that about eighty wild oxen were domesticated by human beings roughly 10,500 years ago. These domestications happened in Europe as well as India. And the animals we domesticated were not docile cows. They were wild aurochs much larger than the biggest cows we have today.

After being domesticated by human societies, subsequent generations of cows felt less and less in need of being wildly aggressive. Over generations, aggression was bred out by artificial breeding. They lived in safe habitats and their food needs were taken care of. This is why today, we have cows which are much less aggressive.

I should point out however, that I have been chased by stray cows when I was a child. My grandmother spent her last years hunch-backed because a cow rammed her in an unfortunate accident. The instinct for self-preservation never really goes away.

The human brain is not very good at perceiving changes that occur over very long or very short periods of time. So it is a natural mistake to think that cows are just cows and not the result of a really long process of evolution. The scientific method allows us to look back at history for ourselves and uncover the face of nature.