"They look incredibly tough, but they're still in danger. Meet the 'nose horn' rhinoceros . . . Discover the differences between Sumatran and Black Rhinos and how they use those massive horns. Learn about rhino life, how they mark their territories, and why they charge. However mighty they may seem, they are having a tough time. Find out why these awesome animals are endangered and what is being done to help them"--Publisher.