CHICAGO -- An endangered monkey at Chicago's Lincoln Park Zoo is now cancer-free following a first-of-its-kind surgery. The patient is named Zhang, an old-world monkey known as a Francois langur. The ...

A Francois langur at the Lincoln Park Zoo is back with his family group after undergoing two successful surgeries to remove a cancerous tumor on the roof of his mouth. “The intervention is the first ...

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Research shows a threatening development for two endangered primate species in Bangladesh: Phayre's langurs (Trachypithecus phayrei) and capped langurs (Trachypithecus pileatus). In mixed groups of ...

A new conservation plan aims to halt the decline of langur monkeys in Southeast Asia, where habitat loss and poaching have severely reduced their numbers. The 10-year Asian Langurs Conservation Action ...

Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs in the rainforests in the country’s northeast. A recent study has unveiled a trend of hybridization between Phayre’s langurs ...

A juvenile hybrid langur in Rema-Kalenga Wildlife Sanctuary, Bangladesh. One can easily recognized the mixture of morphological characters. For examplethe white eye rings of the Phayre's langurs and ...