Semnopithecus is a genus of Old World monkeys native to the Indian subcontinent, with all species with the exception of two being commonly known as gray langurs. [1] Traditionally only the species Semnopithecus entellus was recognized, but since about 2001 additional species have been recognized.

Langur, the general name given to numerous species of Asian monkeys belonging to the subfamily Colobinae. The term is often restricted to nearly two dozen species of leaf monkeys but is also applied to various other members of the subfamily.

Langurs, part of the Colobinae subfamily, represent Old World monkeys recognized for their elongated bodies, extended tails, and remarkable facial features. They are primarily tree-dwelling, spending most of their lives amid the canopy of diverse forest environments.

Miller's langur (Presbytis canicrus), also known as Miller's grizzled langur or Kutai grey langur, is a species of leaf monkey. It is endemic to East Kalimantan on the island of Borneo in Indonesia. It is one of the world's most endangered primates, and was at one time thought to be extinct, until it was rediscovered in 2012.

Langurs belong to a species of Old World monkey of the subfamily colobinae found throughout Southeast Asia and Southern China, as well as parts of India. "This group contains more than 60 species, all of them distinguished by their leaf-rich diet," says Gibson, a wildlife biologist who has more than 40 years of experience working with primates."

The dusky leaf monkey (Trachypithecus obscurus), also known as the spectacled langur or the spectacled leaf monkey, is a species of primate in the family Cercopithecidae. It is found in Peninsular Malaysia, Myanmar and Thailand, [2] and can occasionally be found in Singapore. [3] .

The Laotian langur, also called the Lao langur or Lao leaf monkey, is endemic to the Lao People’s Democratic Republic (Lao PDR). They are found in the Bolikhamxai and Khammouan provinces, in rugged terrain and dry rainforests.

Trachypithecus is a genus of Old World monkeys containing species known as lutungs, langurs, or leaf monkeys. They range across much of Southeast Asia from northeast India to southern China, Borneo into Indonesia, and are found in Vietnam, …

Vietnam's langurs are some of the most endangered primates on Earth. Langurs are monkeys belonging to the subfamily Colobinae. They are “Old World” monkeys with an extremely large family of primates with 159 species and 23 genera presently recognized in Asia. "What exactly is a langur?" you may ask.

Douc Langur Foundation is a 501(c3) nonprofit conservation, research and education organization dedicate to protecting the Douc Langur monkey and their wild habitat to ensure that they will survive in their home ranges for future generations.