From the deep blue oceans to the lush forests, planet Earth has been home to some of the largest and most impressive creatures in the history of life. Some of these animals are so massive that it's hard to even imagine their size. From towering herbivores to fierce predators, these huge creatures have left an indelible mark on the planet. In this video, we'll take a look at some of the largest animals that ever lived on Earth, and what is the largest today. From the biggest sauropod dinosaur to

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