into the pinnawela National park
Gray langurs or Hanuman langurs
The Gray Langur or Hanuman Langur (Semnopithecus) is a genus of monkey. They are found in southeast Asia. The word "langur" means 'having a long tail.'[source?] It is commonly called the Leaf Monkey. Langurs can reach 17 to 31 inches in height and 11 to 40 pounds in weight. Their tail can be up to 42 inches long. Males are larger than females. Langurs have excellent eyesight and sense of hearing which help them avoid the predators.
Gray langurs or Hanuman langurs, the most widespread langurs of South Asia, are a group of Old World monkeys constituting the entirety of the genus Semnopithecus. All taxa have traditionally been placed in the single species Semnopithecus entellus. In 2001, it was recommended that several distinctive former subspecies should be given species status, so that seven species are recognized. A taxonomic classification with fewer species has also been proposed. Genetic evidence suggests that the Nilgiri langur...