to compete in, what will you replace that with? >> next year i'll try to go somewhere in the math olympiads and physics olympiads. >> really setting the bar there low. ar individual mahankali, we're in awe. we don't know how you do it. thrilled for you. >> very good work. all of it paying off. we can't wait to see you do next. thank you for coming by. the vast majority of injuries are caused by us. cnn hero doing her part to fix that damage. playing mother nature to thousands of animals born to be wild. meet mona wrecker. >> in this fast-paced world, we do forget that we are animals, and part of the natural world. this is a beautiful female bald eagle. humans, we are wild life's worst enemy in many, many ways. she had been clipped by a small jet. we don't want her to live in a