You shouldn't sit and do nothing all day.

If you were a computer program that didn't do anything would the computer owner want you on his pc?

You do not know that.

And animals came from single celled organisms, so without that animals would never have shown up.

And single celled organisms were probably placed here by aliens or brought from outer space by an asteroid.

See you changed the question, now the answer is yes because animals help us on a daily basis, although they are being replaced by machines, they have the same value as humans.

And actually, now that I think about it, you were correct before, because the earth is being ruined by humans, and animals keep it in a good state.

But if humans learned from animals to live with nature instead of building upon it, that would be nice

Sorry I was thinking of a different place.

You would not be here without human beings giving birth to you.

And then you wouldn't even know what an animal is.

You are a troll