Terri Roth trudges through the thick, dark Sumatran jungle. Shes looking for a rhinoceros thats been seen in the area. Its a rare Sumatran rhino, the worlds smallest rhino and one of the most endangered mammals on the planet.Suddenly she spots a young female rhino through the tangle of ferns and trees. The stocky animal is covered in reddish hair, and her snout sports two stubby horns. The rhino walks right up to Terri. The scientist slowly reaches out her hand and touches the rhinos big nose. The wild rhinos curiosity and friendliness remind Terri of Emi, the female Sumatran rhino that lives at the Cincinnati Zoo where Terri works. Terri is working with Emi to help save Sumatran rhinos from extinctionone calf at a time.