Editing Semnopithecus (section)

==Characteristics==
These langurs are largely gray (some more yellowish), with a black face and ears. Externally, the various species mainly differ in the darkness of the hands and feet, the overall color and the presence or absence of a crest.<ref name=Groves2001>{{cite book |last1=Groves |first1=C. |year=2001 |title=Primate taxonomy |location=Washington DC |publisher=Smithsonian Institution Press |isbn=1-56098-872-X}}</ref><ref name=Brandon-Jones>{{cite journal |last1=Brandon-Jones |first1=D. |year=2004 |title=A taxonomic revision of the langurs and leaf monkeys (Primates: Colobinae) of South Asia |journal=Zoos' Print Journal |volume=19 |issue=8 |pages=1552–1594 |doi=10.11609/jott.zpj.971.1552-94 |url=http://www.zoosprint.org/ZooPrintJournal/2004/August/1552-94.pdf|doi-access=free}}</ref> Typically all north Indian gray langurs have their tail tips looping towards their head during a casual walk whereas all south Indian and Sri Lankan gray langurs have an inverted "U" shape or a "S" tail carriage pattern.<ref>{{cite journal |author=Roonwal, M.L. |title=Intraspecific variation in size, proportion of body parts and weight in the hanuman langur, ''Presbytis entellus'' (Primates), in South Asia, with remarks on subspeciation |journal=Records of the Zoological Survey of India |volume=79 |pages=125–158 |year=1981 |issue=1–2 |doi=10.26515/rzsi/v79/i1-2/1981/161760 |s2cid=251696925 |url=http://faunaofindia.nic.in/PDFVolumes/records/079/01-02/0125-0158.pdf}}</ref> There are also significant variations in the size depending on the sex, with the male always larger than the female. The head-and-body length is from {{convert|51|to|79|cm|in|abbr=on}}. Their tails, at {{convert|69|to|102|cm|in|abbr=on}} are always longer than their bodies.<ref name="Burnie"/> Langurs from the southern part of their range are smaller than those from the north. At {{convert|26.5|kg|lb|abbr=on}}, the heaviest langur ever recorded was a male [[Nepal gray langur]].<ref name=Brandon-Jones/> The larger gray langurs are rivals for the largest species of monkey found in Asia. The average weight of gray langurs is {{convert|18|kg|lb|abbr=on}} in the males and {{convert|11|kg|lb|abbr=on}} in the females.<ref name="Burnie"/>

Langurs mostly walk quadrupedally and spend half of their time on the ground and the other half in trees. They will also make bipedal hops, climbing and descending supports with the body upright, and leaps. Langurs can leap {{convert|3.6|–|4.7|m|ft|abbr=on}} horizontally and {{convert|10.7|–|12.2|m|ft|abbr=on}} in descending.<ref name="Ripley 1967"/>