What do milk butter cheese and meat all have in common?

Here's a breakdown:

* Milk: Produced by mammals, specifically cows, goats, or sheep.

* Butter: Made from churning milk or cream, which comes from animals.

* Cheese: Made by curdling milk, which is an animal product.

* Meat: Comes from the flesh of animals, usually cattle, pigs, chicken, etc.

Let me know if you'd like to explore other commonalities!