A comparison of bonobo and chimpanzee tool use: evidence for a female bias in the Pan lineage
- Biology, PsychologyAnimal Behaviour
Is primate tool use special? Chimpanzee and New Caledonian crow compared
- BiologyPhilosophical Transactions of the Royal Society B: Biological Sciences
The chimpanzee (Pan troglodytes) is well-known in both nature and captivity as an impressive maker and user of tools, but recently the New Caledonian crow (Corvus moneduloides) has been championed as…
Sex differences in tool use acquisition in bonobos (Pan paniscus)
- Biology, PsychologyAmerican journal of primatology
Sex differences in latencies to attempt and to succeed where females attempted to fish, were successful more quickly, and fished more frequently than males are found, supporting the hypothesis of a female bias in tool use in Pan.
New evidence on the tool-assisted hunting exhibited by chimpanzees (Pan troglodytes verus) in a savannah habitat at Fongoli, Sénégal
- Biology, Environmental ScienceRoyal Society Open Science
It is argued that social tolerance at Fongoli, along with the tool-assisted hunting method, permits individuals other than adult males to capture and retain control of prey, which is uncommon for chimpanzees, and asserted that tool- assisted hunting could have similarly been important for early hominins.
CHIMPANZEE ( Pan troglodytes ) MATERIAL CULTURE: IMPLICATIONS ON TAXONOMY
A review of the current taxonomy of the chimpanzee is suggested, based on the material culture, and others factors, such as genetic information, it is argued the inclusion in the genus Homo.
Insectivory of savanna chimpanzees (Pan troglodytes verus) at Fongoli, Senegal.
- Biology, Environmental ScienceAmerican journal of physical anthropology
The results support the hypotheses that invertebrate prey may have figured more prominently into the diet of early hominins in similar habitats, especially given that invertenbrates are an important source of protein and other essential nutrients in a highly seasonal environment.
Tool use in wild spider monkeys (Ateles geoffroyi)
- Biology, PsychologyPrimates
Observations of novel and spontaneous tool use in wild black-handed spider monkeys (Ateles geoffroyi) are presented, where female spider monkeys used detached sticks in a self-directed manner.
Recent findings have further blurred the boundaries between what the authors consider to be human versus nonhuman by showing that chimpanzees can use and combine tools in complex sequences and combinations.
Wild chimpanzees (Pan troglodytes troglodytes) exploit tortoises (Kinixys erosa) via percussive technology
- BiologyScientific Reports
The findings suggest the need for more nuanced interpretations of chimpanzees’ cognitive skills in combination with an in-depth understanding of their unique socio-ecological niches and the importance of nonhuman primate field observations to inform theories of hominin evolution.
Insect prey characteristics affecting regional variation in chimpanzee tool use.
- BiologyJournal of human evolution
SHOWING 1-10 OF 47 REFERENCES
The ant-gathering behaviour by the use of tools among wild chimpanzees of the Mahali Mountains
The natural history of the chimpanzee (Pan troglodytes verus) at Mt. Assirik, Senegal
- Environmental Science, Biology
Chimpanzees appear to specialise in nocturnal prosimians as mammalian prey, and there is less forest and woodland at Mt. Assirik than at any other site where chimpanzees have been studied.
Tool-assisted predation on a squirrel by a female chimpanzee in the Mahale Mountains, Tanzania
- Environmental Science, BiologyPrimates
A 12-year-old female chimpanzee of M-Group in the Mahale Mountains National Park, Tanzania was seen to rouse, capture, and eat a squirrel hiding in the narrow hole of a tree, which appears to be the first reported case for chimpanzees, or any other nonhuman primate, of tool-use that directly led to the capture of a mammalian prey species.
Why do chimpanzees hunt and share meat?
- Biology, PsychologyAnimal Behaviour
Although several factors are likely to affect chimpanzee hunting decisions and meat sharing, results indicate that primary causes will not be found through invoking simple energetic or reproductive considerations.
Chimpanzees in a hot, dry and open habitat: Mt. Assirik, Senegal, West Africa
- Environmental Science
The maker not the tool: The cognitive significance of great ape manual skills
This chapter reviews object-directed manual skills in living great apes, making comparison where possible with hominin abilities that can be inferred from the archaeological record, and considers whether a living non-human ape could effectively knap stone, and if not, what competence is lacking.
Great Ape Societies: Minds
This book discusses chimpanzees, Savanna chimpanzees, referential models and the Last Common Ancestor, and a new milestone in great ape research Junichiro Itani's research.
The crafting of hook tools by wild New Caledonian crows
- BiologyProceedings of the Royal Society of London. Series B: Biological Sciences
To make all 10 tools, the crows carried out a relatively invariant three–step sequence of complex manipulations that involved (i) the selection of raw material, (ii) trimming and (iii) a lengthy sculpting of the hook.
Animal behaviour: Use of dung as a tool by burrowing owls
- Environmental Science, BiologyNature
The widespread collection of mammalian dung by burrowing owls is described and it is shown that they use this dung as a bait to attract dung beetles, a major item of prey.