A monkey sitting in a tree, looking at me. It has mainly dark fur, with a mask of white fur around the eyes, nose and mouth. There is also some white fur on the chest.

Another monkey on a tree looking down at me. This one also has dark fur. There is also white fur around the eyes, nose and mouth. This one has more white fur on the chest area, compared to the previous one.

A female monkey resting on a tree trunk with a child clinging to her from the front. The female is looking away from the camera, but the child is looking curiously at the camera. Both have dark fur on their bodies.

A group of Raffles' banded langur (Presbytis femoralis) in the Central Catchment Nature Reserve area, Singapore on 29 March 2026. I was excited to see a mother with a curious child. :-)

On iNaturalist [ www.inaturalist.org/observations... ].

#iNaturalist #Nature #Singapore #Langurs #Primates

#Primates

How lifetime stress drives abnormal behaviors in lab monkeys It is not unusual for laboratory monkeys to engage in abnormal repetitive behaviors (ARBs), such as pacing and hair-plucking. Conventional thinking is that these actions are linked to recent stresses ...

Sigh. #Primates

White-thighed black-and-white colobus monkey adult males sitting peacefully in a tree.

These colobus monkey males might look like harmless, adorable teddy bears, but think again…👺 😨 Read about how male coercion and reproductive strategies stress out females in our new article: rdcu.be/favqS @intjprimatol.bsky.social 🧪🏺 #Primates #AcademicSky #AnimalBehavior

🐳 It had only been observed among #primates... until now: scientists have just released proof of #birth assistance among sperm #whales off the coast of #Dominica, filmed in 2023.

Birutė Galdikas: The last of the ‘angels’ in primatology’s most extraordinary chapter With Jane Goodall and Dian Fossey, Galdikas changed the face of science and opened the world’s eyes to how similar humans are to orangutans and other primates.

28) Another obituary regarding Dr Birute Galdikas #orangutan #orangutans #primatology #primates
theconversation.com/birute-galdi...

Limba the King colobus biting a piece of wood

Limba the King colobus biting a piece of wood

Limba the King colobus biting a piece of wood #PaigntonZoo #kingcolobus #primates

Kiondo foraging for tomatoes

Kiondo foraging for tomatoes

Kiondo foraging for tomatoes

Kiondo foraging for tomatoes #PaigntonZoo #gorilla #primates

Sunan or Nimith the male Pileated gibbons

Sunan or Nimith the male Pileated gibbons #PaigntonZoo #gibbon #primates

Masripithecus: A new Miocene ape from Egypt sheds light on the origins of modern apes In a study published in Science, an international research team from the Mansoura University Vertebrate Paleontology Center (Egypt) and the University of Southern California (U.S.) describe Masripithe...

#Paleontology #Anthropology #Primates

🐒 Northern Plains Gray Langur (Semnopithecus entellus)
📏 45.1–78.4 cm (plus 80.3–111.8 cm tail)
📍 Ranthambore National Park, Rajasthan, India 🇮🇳
🗓 Feb 2026

#mammals #primates #monkeys #langurs

‘Scientist of global renown’: Lithuanian-born anthropologist Birute Galdikas dies aged 79 Lithuanian-born anthropologist Birutė Galdikas, one of the world’s foremost researchers of orangutans, has died at the a...

27) Sad to report that world renowned Dr Birute Galdikas has just passed away. A primatologist who had a life long commitment to #orangutans & a strong advocate against all palm oil . RIP. #orangutan #drbirutegaldikas #palmoil #borneo #environmental #primates #rainforest

www.lrt.lt/en/news-in-e...

Langur alert!!! 🚨 #Primates

#Primates

Red bellied guenon

Red bellied guenon

Red bellied guenon #mwaperescue #guenon #primates

A-mei & Tuan

Mimi-Loren

RoRo

Oshine

A-mei & Tuan, Mimi-Loren & RoRo. Followed by Oshine from the Nursery group #mwaperescue #orangutans #primates

If you think any of the material in the post shouldn't be here, just inform us and we'll act promptly.

#Orangutan #WildlifeRehabilitation #AnimalIntelligence #Conservation #Primates

Palm oil clearing advances in Bornean orangutan habitat despite red flags JAKARTA — A palm oil company is ramping up its destruction of forests that are home to critically endangered orangutans in a UNESCO Biosphere Reserve on the island of Borneo, according to satellite im...

Ugh!!! #Primates

Birutė Galdikas, primatologist who spent a lifetime studying & defending orangutans, has died at 79 In the early 1970s, orangutans occupied an ambiguous place in science. They were known to exist, of course, but remained poorly understood, rarely observed, and difficult to study in the wild. Their f...

#Primates

#Primates

#Primates #RIPDrBirute

A captive chimp's instrumental performances hint at the evolution of vocal externalization In February 2023, a resident at Kyoto University's Center for the Evolutionary Origins of Human Behavior—EHUB—treated researchers to a spontaneous musical performance. Ayumu, a 26-year-old male chimpa...

#Primates #Anthropology

Famed primatologist Biruté Galdikas dead at 79 | CBC News Biruté Mary Galdikas, a Canadian scientist who dedicated her life to the study and conservation of orangutans, has died. She was the last living member of the renowned primatologists known as "trimate...

Still feeling so sad about this. I hadn't heard that she was sick with lung cancer. #Primates

Picture of a book, Reflections of Eden by Biruté Galdikas

A good day to pick this up again. Rest in peace Biruté Galdikas. Thanks for helping the orange people.

#primates #💙📚

Handsome Stump-tailed macaque 'Toto'

Handsome Stump-tailed macaque 'Toto'

Handsome Stump-tailed macaque 'Toto' #MWAperescue #macaque #primates

Waking up to confirmation that Dr. Birute did pass away yesterday morning. Sigh. All 3 tri-mates are now gone. I feel so grateful that I was able to hear Dr. Birute speak about the orangutans she loved so much. #Primates

An adult male chacma baboon suddenly attacks an adult female for no obvious reason at Tsaobis Nature Park, Namibia. Such regular, unprovoked attacks have been shown to represent sexual intimidation, at least for the most part |Un mâle babouin chacma adulte attaque soudainement une femelle adulte sans raison évidente à Tsaobis Nature Park, Namibie. Il a été montré que ces attaques régulières et non provoquées représentent des comportements d’intimidation sexuelle, au moins pour une part importante. Baniel et al., 2017 ; photograph/photographie : Guilhem Duvot

Distribution of dominance between sexes in primate societies. Figure adapted from Huchard et al. 2025: (A) observed percentage of confrontations won by females for each species; the black horizontal bars cover the range of values observed in different populations or studies of the same species; the colour code shows how each species was classified into a 3-level variable: Clear female dominance (winning >90% of confrontations), moderate dominance bias (each sex winning 10 to 90% of confrontations) and clear male dominance (winning >90% of confrontations). (B) Taxonomic distribution of dominance between sexes, mapped onto the primate phylogeny (credit for icons: https://www.phylopic.org) |

🚩 The guest article by Élise Huchard, “Male-female power relations in #non-human #primates: a brief note on emerging perspectives,” is now online and follows her invited lecture at the Journées de la SAP 2025: doi.org/10.4000/15x92

An adult male chacma baboon suddenly attacks an adult female for no obvious reason at Tsaobis Nature Park, Namibia. Such regular, unprovoked attacks have been shown to represent sexual intimidation, at least for the most part |Un mâle babouin chacma adulte attaque soudainement une femelle adulte sans raison évidente à Tsaobis Nature Park, Namibie. Il a été montré que ces attaques régulières et non provoquées représentent des comportements d’intimidation sexuelle, au moins pour une part importante. Baniel et al., 2017 ; photograph/photographie : Guilhem Duvot

Distribution of dominance between sexes in primate societies. Figure adapted from Huchard et al. 2025: (A) observed percentage of confrontations won by females for each species; the black horizontal bars cover the range of values observed in different populations or studies of the same species; the colour code shows how each species was classified into a 3-level variable: Clear female dominance (winning >90% of confrontations), moderate dominance bias (each sex winning 10 to 90% of confrontations) and clear male dominance (winning >90% of confrontations). (B) Taxonomic distribution of dominance between sexes, mapped onto the primate phylogeny (credit for icons: https://www.phylopic.org) | Répartition de la dominance entre les sexes dans les sociétés de primates. Figure adaptée de Huchard et al. 2025 : (A) pourcentage observé de confrontations remportées par les femelles pour chaque espèce ; les barres horizontales noires couvrent la gamme de valeurs observées dans différentes populations ou études de la même espèce ; le code couleur montre comment chaque espèce a été classée dans une variable à 3 niveaux : dominance féminine claire (victoire dans plus de 90 % des confrontations), biais de dominance modéré (chaque sexe remportant entre 10 et 90 % des confrontations) et dominance masculine claire (victoire dans plus de 90 % des confrontations). (B) Répartition taxonomique de la dominance entre les sexes, cartographiée sur la phylogénie des primates (crédit pour les icônes: https://www.phylopic.org)

🚩 l'article invité d'Élise Huchard "Male-female power relations in #non-human #primates: a brief note on emerging perspectives" est en ligne, et fait suite à sa conférence invitée de la SAP 2025 : doi.org/10.4000/15x92

#News: Great #apes tease and prank each other 🤡😛🦍🦧🐵🐒 just as humans do. Incl. body-slamming, hair-pulling, waving objects in front of each other’s faces – new #research study finds #sentience #primatology #primates #Boycottpalmoil #Boycott4Wildlife wp.me/pcFhgU-7gR