Gray-faced Sengi (IMAGE) California Academy of Sciences Caption The gray-faced sengi (Rhynchocyon udzungwensis) is known to exist in only two populations that cover about 300 square kilometers (115 square miles) of forest in Tanzania, in the Udzungwa Mountains. It was described in 2008 by California Academy of Sciences mammalogists Dr. Galen Rathbun. This charismatic mammal is just one of many species in need of protection in the Udzungwa Mountains, which serve as an important dry-season refuge for many animals from adjacent areas. A recent survey suggests that the few remaining wildlife corridors linking the mountains to surrounding protected areas are critically threatened, and will be lost imminently without intervention. Credit California Academy of Sciences Usage Restrictions With credit to the California Academy of Sciences License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.