Water Monitors are some of the most intelligent lizards in the world. Learn why: | National Geographic Animals

This spectacular wild yellow-spotted monitor was filmed by reptile enthusiast Dan Rumsey, zookeeper at Australian Reptile Park. Also known as the Argus monitor, the adults can grow to a length of 1.5 meters. Turn your volume on for this folks, you're going to want to hear that incredible hiss! Video courtesy of Zookeeper Dan | Science Is Awesome