[ProtectOurFreedom]

...[cow milk] ingestion may have provided greater chances of survival during food shortages or when supplies of drinking water were contaminated.

It's interesting that cows could drink contaminated water and convert it to pure milk that humans could drink. Why didn't the cows get sick on the same contaminated water that would have sickened humans?

[SunkenCiv]

They did get sick, they just didn't whine about how Trump doesn't wear a mask.

[skr]

Four stomachs to process what they ingest might have something to do with it. Plus, some bacteria affect humans but not animals and vice versa.

[alexander_busek]

It's interesting that cows could drink contaminated water and convert it to pure milk that humans could drink. Why didn't the cows get sick on the same contaminated water that would have sickened humans?

Your question indicates fallacious reasoning.

There are several possibilities:

1. Some of the cows undoubtedly did get sick from the contaminated water. But a caring father would nevertheless prefer giving his recently-weaned, still somewhat sickly infant child cow's milk rather than contaminated water.

2. A robust, healthy cow is more resistant to contaminated water than an aged grandfather. Etc.

Regards,

[FLT-bird]

A lot of animals have much stronger immunity to pathogens in water that would make humans sick. My dog can drink from streams/rivers when we go hiking and not get sick. I can’t.

[Svartalfiar]

It's interesting that cows could drink contaminated water and convert it to pure milk that humans could drink. Why didn't the cows get sick on the same contaminated water that would have sickened humans?

Many animals don't get sick from water that humans can't really drink. They're still often infected with tapeworms or other symptoms that aren't readily visible. Also, many bacteria and viri can only infect certain animals. So something that kills a human may do nothing to a dog or cow or horse.