He chooses "Thorny Devil" breathing. A thorny devil is a lizard native to Australia, but what do I know about it? Nothing. I ask if it is covered in spiky thorns and wondered if it rolls in a ball. I just need a couple clues so that I can figure out how a thorny devil can take a deep in-breath and exhale slowly, to then fill the lungs again. Three times we will breathe in and out like a thorny devil.