As the world's largest land mammal, elephants have quite the commanding presence. But did you know elephants can't jump? Or that baby elephants lose their first set of teeth and tusks, just like humans? This World Elephant Day, learn about both Asian and African elephants and the threats facing these highly intelligent animals today. Share this video with your learners: http://on.natgeo.org/6186Y4il8 | National Geographic Education