HOME >> BIOLOGY >> NEWS
Chimpanzee stone tool site excavated

l as a few centimeters.

Using archaeological methods on a non-human species, for the first time the excavations revealed new facets of chimpanzee tool behavior. Especially interesting was the excavation of Panda 100, a large tree where Hedwige and Christophe Boesch have observed for many years chimpanzees cracking nuts with different stones they transported over hundreds of meters from other Panda trees. Due to the low visibility across the rainforest floor chimpanzees have to mentally calculate all of these movements keeping transport costs to a minimum. The archaeological data show that chimpanzees collect rocks from various sources across the landscape and bring them to nut-cracking sites.

This project has confirmed for the first time that archaeology can be successfully applied to the study of past chimpanzee behavior. The distribution of remains is not random, presenting very clear concentrations of nut shells and stone remains at nut-cracking areas. The distribution of these clusters, with well defined edges, closely resemble what archaeologists understand as "activity areas". The unearthed materials include more than 4 kilograms of stone pieces and almost 40 kilos of nut-shell, and demonstrate that, like human sites, it is the repeated occupation of the same spot and the creation of large refuse accumulations that creates what archaeologists call a "site". Because the site of Panda 100 is most likely older than 100 years, this discovery indicates that nut-cracking behavior has been present in this region for many generations.

The stone remains retrieved were unintentionally produced by chimpanzees as they hit rock hammers against wooden anvils. In all, 479 stones pieces were excavated, some from a depth of as deep as 21 cm. A fascinating aspect of this discovery is that the size of the stones, the shape of flakes, and the many small pieces of debris left by chimpanzees are similar to the stones left behind by some of our early ancestor
'"/>

Contact: Prof. Christophe Boesch
boesch@eva.mpg.de
49-341-9952-201
Max-Planck-Gesellschaft
23-May-2002


Page: 1 2 3

Related biology news :

1. Chimpanzees with little or no human contact found in remote African rainforest
2. Chimpanzee virus may be key to better vaccines, study shows
3. Chimpanzee subspecies are genetically mixed and more diverse than humans, according to research in 5 November 1999 Science
4. Gladstone investigator Mike McCune wins prestigious NIH Directors Pioneer Award
5. The future of HIV therapeutics is brightening, according to Gladstone Institutes Director
6. Prions act as stepping stones in evolution
7. Oldest evidence for processing of wild cereals: starch grains from barley, wheat, on grinding stone
8. Wolf reintroduction reshapes Yellowstone ecology
9. New milestones on the path to conquering HIV drug resistance (AIDS)
10. Earstones tell fishes tale of early life in the Colorado River estuary
11. Microbes found in Mayan ruins may deteriorate stone from inside out

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/16/2019)... (PRWEB) , ... April 16, 2019 , ... ... markets, celebrated the grand opening of its new medical device facility on Friday, ... , Located in Memphis, TN the new facility includes 108,500 square feet and ...
(Date:4/12/2019)... ... April 11, 2019 , ... ... to announce their efforts to help decrease opioid abuse by offering over-the-counter vitamin ... or a discounted rate, up to 50% off. , In 2019, Zen Nutrients ...
(Date:4/4/2019)... ... April 02, 2019 , ... Catalent Pharma Solutions, the ... and consumer health products, today announced that it will host a roundtable session ... Harbor Hotel, Oxon Hill, Maryland, on April 10-12, 2019. , On Thursday, April ...
Breaking Biology News(10 mins):
(Date:4/12/2019)... ... April 12, 2019 , ... An upcoming episode of ... about innovative tools and devices being used to enhance cognitive skills. This episode ... This segment of Advancements will focus on Sound for Life, a neurotechnology company ...
(Date:4/9/2019)... ... April 09, 2019 , ... ... on increasing the capacity of life sciences organizations to accelerate innovation and maximize ... platform in the past 12 months. , USDM’s Cloud Assurance ...
(Date:4/8/2019)... SOUTH JORDAN, Utah and BOSTON (PRWEB) , ... ... ... leader in delivering cloud-based enterprise-class unified communications and collaboration solutions, announced today the ... provides integration to an unprecedented range of business and contact-orientated applications while ...
(Date:4/4/2019)... ... 02, 2019 , ... Biomeme, Inc. , a leading ... field-ready solution for performing PCR, RT-PCR, qPCR, and Isothermal tests called Franklin ... Franklin, an English chemist and X-ray crystallographer who made significant contributions to the ...
Breaking Biology Technology:
Cached News: