These 1,000-pound creatures travel in large herds and can smell water miles away. Now, the race is on to stop them from inundating Australia’s fragile ecosystems—one camel burger at a time.

Voice 1: The cries of camel herder Hamad al-Marri mean nothing ... bringing together a scattered herd threatened by a coming sandstorm, for example, or soothing camels as they drink water.