|
Post by brobear on May 21, 2021 5:48:06 GMT -5
www.sciencemag.org/news/2018/11/orangutans-are-only-great-apes-besides-humans-talk-about-past Orangutans are the only great apes—besides humans—to ‘talk’ about the past When wild orangutans spot a predator, they let out a loud “kiss-squeak,” a call that sounds like a human smooching. That noise tells tigers and other enemies, “I’ve seen you,” scientists believe, and it also lets other orangutans know danger is near. Now, researchers report having heard orangutans making this call long after predators have passed—the first evidence that primates other than humans can “talk” about the past. “The results are quite surprising,” says Carel van Schaik, a primatologist at the University of Zurich in Switzerland who was not involved in the work. The ability to talk about the past or the future “is one of the things that makes language so effective,” he says. That suggests, he adds, that the new findings could provide clues to the evolution of language itself. Many mammals and birds have alarm calls, some of which include information on the type and size of a predator, its location and distance, and what level of danger it poses. But until now, researchers have never heard wild animals announcing danger after the fact.
|
|
|
Post by brobear on May 21, 2021 5:53:19 GMT -5
animals.sandiegozoo.org/animals/orangutan Scientists like to explain the orangutan’s unique approach to problem solving with this example: If a chimpanzee is given an oddly shaped peg and several different holes to try to put it in, the chimpanzee immediately tries shoving the peg in various holes until it finds the correct hole. But an orangutan approaches the challenge quite differently. It may stare off into space or even scratch itself with the peg. Then, after a while, it offhandedly sticks the peg into the correct hole while looking at something else that has caught its interest!
|
|
|
Post by OldGreenGrolar on Sept 28, 2021 8:26:50 GMT -5
Apes are said to be ten times more intelligent than monkeys.
|
|
|
Post by OldGreenGrolar on Sept 28, 2021 8:29:10 GMT -5
|
|
|
Post by brobear on Sept 28, 2021 11:12:02 GMT -5
Apes are said to be ten times more intelligent than monkeys. This sounds like an exaggeration.
|
|
|
Post by OldGreenGrolar on Sept 28, 2021 11:20:29 GMT -5
|
|
|
Post by brobear on Sept 21, 2022 11:17:07 GMT -5
Chimpanzee stone tool diversity www.sciencedaily.com/releases/2022/09/220920211236.htm During fieldwork aimed at documenting the stone tool use of a group of wild chimpanzees in the Taï Forest in Cote d'Ivoire in early 2022, the researchers identified and 3D scanned a variety of stone tools used to crack different nut species. It has long been shown that various chimpanzee groups possess different tool use cultures involving wooden and stone tools, however, only some groups in West Africa use stone tools to crack open nuts. By comparing the 3D models of different stone tools used by chimpanzees in the Taï Forest to those from another group in Guinea, the researchers showed that there exist notable differences between the two groups in terms of their material culture. The study shows that this particular group of chimpanzees in Guinea uses stone hammers varying in the type of stone and sizes, and very large stone anvils, sometimes greater than one meter in length. These durable stone tools are widespread across the landscape; preserve different levels of damage related to their use and represent a lasting record of chimpanzee behaviours. Stone tools used for nut cracking can differ between chimpanzee groups This study highlights the fact that, although several groups of chimpanzees practice nut cracking, the tools they use can differ significantly from one another, potentially leading to group specific material signatures. These differences are driven by a combination of stone choice, stone availability, and the nut species eaten. Previous research has shown, that by using stone tools, some groups of chimpanzees develop their own archaeological record dating to at least 4,300 years ago. "The ability to identify regional differences in stone tool material culture in primates opens up a range of possibilities for future primate archaeological studies," says Tomos Proffitt from the Max Planck Institute of Evolutionary Anthropology, who led the research. It has been hypothesised that a simple technology, like nut cracking, was a precursor to more complex stone technologies during the early stages of our own evolution more than three million years ago. Proffitt continues, "by understanding what this simple stone tool technology looks like, and how it varies between groups, we can start to understand how to better identify this signature in the earliest hominin archaeological record."
|
|
|
Post by OldGreenGrolar on Oct 9, 2022 4:48:37 GMT -5
/\ Apes are naturally intelligent. In terms of using tools, apes surpass bears in that skill.
|
|