Create accountLogin

Recent searches

No recent searches

Search options

Only available when logged in.
mstdn.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
A general-purpose Mastodon server with a 500 character limit. All languages are welcome.

Administered by:

Server stats:

13K
active users

mstdn.social: AboutStatusProfiles directoryPrivacy policy

Mastodon: AboutGet the appKeyboard shortcutsView source codev4.3.8

#chimpanzees

2 posts1 participant0 posts today
Public
Hacker News

Chimpanzees yawn when observing an Android yawn

nature.com/articles/s41598-025

NatureChimpanzees yawn when observing an android yawn - Scientific ReportsThis study explores contagious yawning in adult chimpanzees (Pan troglodytes) in the presence of a non-biological humanoid agent, an android. Chimpanzees observed an android portraying specific facial expressions, including yawns and gapes. The results showed that adult chimpanzees exhibited across-agent yawn contagion, with a graded response: the highest contagion occurred when the android displayed a fully wide-open mouth (Yawn condition), a reduced response when the mouth was partially opened (Gape condition), and no contagion when the android’s mouth was closed (Close condition). Additionally, chimpanzees engaged in behaviours associated with drowsiness, such as gathering bedding materials, constructing nests, and lying down, while observing the android yawning. This suggests that yawning by an unfamiliar model may act as a contextual cue for rest, rather than merely triggering a motor resonance response. These findings contribute to the understanding of non-human primates’ susceptibility to contagiously induced behaviours, specifically yawns, even when triggered by an artificial agent. This study highlights the role of social factors in shaping yawn contagion and calls for further research on cross-species and cross-agent interactions.
#HackerNews#Chimpanzees#Android
Public
James Huff :prami_pride_pan:

"Together with JGI Austria, we’ve focused on a crucial #reforestation aspect of the broader project. Our pledge of $100,000 over three years will enable JGI Tanzania to continue its work, saving 360,000 seedlings, and preserving local jobs dedicated to their care. It will ensure 20 tree nurseries can continue growing endemic, native species, including valuable food sources such as avocado, lemon and mango. Once planted, the #trees will restore large areas of cleared #forest and provide migration corridors and essential habitats for endangered species, including #chimpanzees."

blog.ecosia.org/doge-defunded-

The Ecosia Blog · DOGE defunded Jane Goodall’s Tanzania project–we’re pledging $100kDOGE-driven cuts to USAID funding stalled a conservation project in Tanzania. We’ve partnered with the Jane Goodall Institute to continue reforestation.
Public
Radical Anthropology

Socially integrated female #chimpanzees have reduced offspring mortality in East African wild communities.

'We find that females that were more socially integrated with other females in the year before giving birth had higher offspring survival to age 1 (the period of highest mortality) and age 5 (the approximate age of weaning). Furthermore, social integration remained a strong predictor of offspring survival among females without close female kin.'

#greatapes #socialbonds #females

cell.com/iscience/fulltext/S25

Public
Radical Anthropology

Study of tool use by elderly #chimpanzees in Bossou, Guinea. Looking at archive footage of wild chimpanzees engaging in one of their most complex forms of tool use - the cracking of hard-shelled nuts with hammers and anvil stones. Extent of age-related change in tool engagement and efficiency was very variable.

#senescence #primates #greatapes #lifehistory

elifesciences.org/reviewed-pre

elifesciences.orgOld age variably impacts chimpanzee engagement and efficiency in stone tool use
Public
michael

14-May-2025
#Chimpanzees use #medicinal leaves to perform first aid
Scientists observed chimpanzees in Uganda apparently cleaning and treating their own and others’ wounds

eurekalert.org/news-releases/1

see also my feature on #animals #selfMedicating (#openArchives) proseandpassion.blogspot.com/2 #science #ethology #behaviour #ecology

EurekAlert!Chimpanzees use medicinal leaves to perform first aidResearchers monitoring chimpanzee communities in the Budongo Forest, Uganda, noticed that individuals were helping each other with wound care and hygiene. Some of the chimpanzees even used fresh, chewed leaves from plants known for their traditional medicinal uses and bioactive properties to treat their own and their companions’ wounds. Remarkably, they helped individuals they were genetically related to and individuals they weren’t, despite the potential risk from being exposed to pathogens. Scientists believe these findings could help us understand the cognitive and social foundations of healthcare. 
Public
Jake in the desert

"Chimpanzees drum on the buttress roots of trees to send information to each other, with each individual having their own signature style.

..researchers say they have not only found chimpanzees drum with non-random timing, but that the rhythms differ between subspecies."

theguardian.com/science/2025/m

The Guardian · Chimps’ rhythmic drumming could shed light on music’s evolutionary rootsBy Nicola Davis
#music#science#biology
Public
Cosmic Librarian

Chimps got hygiene!

Chimpanzees use leaves to wipe bums and clean up after sex, study finds

Research looking at hygiene and healthcare habits of the primates finds implications for understanding origin of human healthcare

#chimpanzees #hygiene #health

theguardian.com/environment/20

The Guardian · Chimpanzees use leaves to wipe bums and clean up after sex, study findsBy Nicola Davis
ExploreLive feeds
About