system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why did humans decide to make cow milk their milk of choice?
gpt
This is a relatively new development. Humans have been milking lots of different animals. Even today goats are kept for their milk in areas where cows have a hard time grazing. But you can get anything from yak milk to camel milk. Cows first became the milk of choice when industrial dairy farms started mass production of milk. Cows are bigger then most animals and produce a lot of milk from a single cow. So instead of having to milk twenty goats it is much easier to just milk one cow and get the same amount of milk.