and grass is made of air

that's why cows fart so much - cows are made of air

So you're telling us to touch cows.

It's pretty amazing an animal the size of a cow can graze like it does. Life is cool.

I am made of potatoes

We are all made of star stuff.

"You are what you eat"

So there is one way to become younger again and achieve immortality!

::: spoiler

Joke is Cannibalism :::

Grass is made of sunlight and water

And we might be some part cow

Grass and soy.

I feel like there's an elemental entity somewhere that wishes they hadn't fragmented into a trillion ingrates

They are what they eat.

"A cow is a machine that turns ten pounds of grass into a pound of beef"- CGP Grey

Yeah, carnivores basically have herbivores use the four stomachs to digest tons of low-nutrition grass for them, and then scoop all the good parts by eating the herbivores.

Dogs are made out of air, water, and dog food.

Angry upvote... -.-