YDAWtheShow on Instagram: "No, Dinosaur Size Wasn't Just the Oxygen "If somebody tells you that this one particular mechanism is so important that other drivers aren't even worth considering, mistrust them. They are telling you to stop being curious." Sauropods like Apatosaurus, Brontosaurus, Diplodocus, etc. did not grow so large just because there was more oxygen in the atmosphere in the distant past. It's an incorrect 'fact' that gets repeated way more than it should. Check out our merch and