"Mammal Semnopithecus" is a scientific classification for a genus of primates commonly known as gray langurs. However, there are other synonyms used for this animal, including the Indian langur, Hanuman langur, or simply gray monkey. Gray langurs are mainly found in South Asia and are known for their distinctive gray fur and long tails. These primates are also known for their social behavior and their vocalizations, which include a range of calls and vocal gestures. While some may refer to them as monkeys, their scientific classification as "mammal semnopithecus" distinguishes them as a group of primates with unique characteristics and traits.