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message 1: by Clare (new)

Clare O'Beara | 6048 comments Mod
Studies about the lip-movement rate of lesser primates and monkeys have now been carried out with chimps. The authors of the report believe this gives clues as to the origins of language in humans.
The study authors sound respectful of chimps and call them our cousins, and while chimps in captivity were studied as well as wild populations, no chimps seem to have been harmed.

message 2: by Clare (new)

Clare O'Beara | 6048 comments Mod
Tool using but differing in different chimp populations.

"Approximately 60 years ago, primatologist and anthropologist Jane Goodall found evidence of termite fishing in wild chimpanzees. It was the first example ever recorded of tool use by a species other than human. Termite fishing by chimpanzees involves breaking a twig off of a tree, removing its leaves and then poking it into a nest to collect ants to eat—ants are an important source of protein. In this new effort, the researchers have found that chimps living in different communities have developed slightly different approaches to termite fishing—an example of cultural diversity."

Looks to me as though when one chimp found a technique that worked all the other local chimps copied it and did not bother thinking up new ideas. Could be that creativity is extremely low or rare in these animals. Maybe creativity was the difference in the hominids, rather than language.

message 3: by Clare (new)

Clare O'Beara | 6048 comments Mod
A similar story from 2018 shows how the studies are carried out:

"Chimpanzees have whole sets of tools to probe termite mounds, extracting the termite "soldiers" and feasting on these rich sources of protein. Different chimp groups also have different termite-fishing techniques. Some chimpanzees we've encountered may even plan ahead and prepare tools before they arrive at mounds, showing the kind of forward planning that was once thought to be uniquely human."

"New technologies such as camera traps, acoustic sensors, and drones are helping make this process easier. And on our most recent field trip we explored a less typical, more creative way to study them, turning to DNA techniques to try to find evidence of chimpanzee behaviour without actually seeing or disturbing the animals."

In the Shadow of Man
In the Shadow of Man by Jane Goodall
Jane Goodall
Jane Goodall

message 4: by Clare (new)

Clare O'Beara | 6048 comments Mod
Older chimps prefer to hang out with friends, as we'd expect. New study finds similarities to human socialising.
More information: A.G. Rosati at University of Michigan in Ann Arbor, MI el al., "Social selectivity in aging wild chimpanzees," Science (2020). … 1126/science.aaz9129
"The upside of aging," Science (2020). … 1126/science.abe9110

Journal information: Science
Provided by Harvard University

message 5: by Clare (last edited Jul 22, 2021 04:09AM) (new)

Clare O'Beara | 6048 comments Mod
Chimps have been filmed attacking monkeys; I've seen a film in which chimps planned a group attack, picking up sticks as weapons to brandish, climbing trees to chase the small monkeys and treating them as prey. Chimps are known to be aggressive and strong.

Here's the first time scientists have recorded chimps attacking gorilla bands, and they did it twice.
Speculation is that lack of living space or competition over preferred ripening fruits caused the attacks.
Deforestation, human encroachment and climate change are possible contributors to the situation.

Gizmodo has many comments on this theme under the article, some more stories, some strong language.

Surprisingly I don't see this story in the listing for today.

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