Five-legged kangaroo? Telling the tale of a kangaroo's tail -- ScienceDaily

Kangaroo walking. The arrow points to the kangaroo's tail. "We found that when a kangaroo is walking, it uses its tail just like a leg," said Associate Professor Maxwell Donelan of Simon Fraser University, corresponding author for the study. "They use it to support, propel and power their motion. In fact, they perform as much mechanical work with their tails as we do with one of our legs."

Credit: Maxwell Donelan, Simon Fraser University

Five-legged kangaroo? Telling the tale of a kangaroo's tail -- ScienceDaily