Aye i have a question, help me right quick please??? 2.5 billion years ago breathing was invented, what were people doing before they learned how to breath. and who taught them??
(i am trippin XD)

Well breathing was “invented” 2.5 million years ago according to the internet, but what they meant was 2.5 million years ago was when they think oxygen breathing life came to be. so the second that life began, they started breathing and that’s why it says that