HOME >> BIOLOGY >> NEWS
Archaeological journey reveals new information on chimpanzee stone tool technology

WASHINGTON, D.C. AND LEIPZIG, GERMANY - Chimpanzees in a remote West African rainforest use stones and branches as hammers to crack open different types of nuts when foraging. While the nuts they crack are available throughout tropical Africa, this nut-cracking behavior has been documented only among chimpanzees from western Cte d'Ivoire, Liberia and southern Guinea-Conakry.

How old is this behavior? Have nut-cracking techniques changed over time? To answer these questions, a unique collaboration of scientists - Christophe Boesch, an expert in chimpanzee behavior of the Max Planck Institute for Evolutionary Anthropology in Germany, Julio Mercader, a specialist in rainforest archaeology in The George Washington University Department of Anthropology, and Melissa Panger, who studies primate tool use at GW - launched an archaeological excavation of a chimpanzee nut-cracking site in Cte d'Ivoire's Tai National Park in September 2001.

Using archaeological methods on a non-human species for the first time, the excavations revealed new facets and confirmed others of chimpanzee tool behavior. Chimpanzees at the site known as "Panda 100," for example, collect rocks from various sources across the landscape and bring them to nut-cracking sites.

The repeated occupation of the same site over many seasons allowed for the cracked nut shells and stone pieces that break off of the hammers to build up. The unearthed materials include more than 479 stone pieces that may have flaked off when smashed on tree roots the chimpanzees used as anvils.

In addition to the possibility of tracing ape culture back in time, the scientists also believe the research will open up new ways of interpreting some early hominid, or human, sites.

"Some of the stone by-products of chimpanzee nut-cracking are similar to what we see left behind by some of our early ancestors in East Africa during a period called the 'Oldowan,'" said Mercader, the lead author of th
'"/>

Contact: Bob Ludwig
bludwig@gwu.edu
202-994-3566
George Washington University
23-May-2002


Page: 1 2

Related biology news :

1. A unique hemoglobin may help the baby kangaroos journey to the mothers pouch
2. Hidden diversity: DNA barcoding reveals a common butterfly is actually 10 different species
3. Brown research reveals key insight into memory-making
4. Study reveals why eyes in some paintings seem to follow viewers
5. New dye directly reveals activated proteins in living cells
6. Study reveals first genetic step necessary for prostate cancer growth
7. Study of flu patients reveals virus outsmarting key drug
8. Study in Science reveals recreational fishing takes big bite of ocean catch
9. Plumbing trees plumbing reveals their engineering skill
10. New survey reveals insights into unique relationship between mothers and pediatricians
11. Study reveals surprising remodeling property of gene regulation process

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


(Date:1/8/2019)... ... January 07, 2019 , ... ... solutions, is proud to welcome Thomas Kennedy as head of sales and business ... for PureWay. , Mr. Kennedy has previously worked for Johnson & Johnson Medical, ...
(Date:1/4/2019)... ... January 02, 2019 , ... Lifecycle Biotechnologies ... the life science tools and service supplier turned 40 in 2018 and for ... catalog features not just part numbers like most catalogs, but rather, insightful information ...
(Date:12/25/2018)... ... 2018 , ... Researchers at the Icahn School of Medicine ... a long-standing computational concept known as “blacklisting,” which is commonly employed as a ... as a filter to single out genetic variations in patient genomes and exomes ...
Breaking Biology News(10 mins):
(Date:1/8/2019)... ... January 08, 2019 , ... The American Society of ... were named by a selection committee made up of industry leaders identified by the ... Development grants are mentored awards created to support ASGCT members designing transformative pilot studies ...
(Date:1/4/2019)... (PRWEB) , ... January 01, 2019 , ... ... first Microbiome Conference at the World Economic Forum Annual Meeting January 22-25, 2019 ... conference is invitation-only. , The World Economic Forum Annual Meeting brings together leaders ...
(Date:12/20/2018)... ... ... New Year’s brings reflection and desire to improve for individuals and businesses ... on the horizon, Jim Kasic, president and CEO of Boulder iQ, suggests five resolutions ... Regulation (MDR), digital health, and big data are just a few of the challenges ...
(Date:12/18/2018)... ... December 17, 2018 , ... ABCT , ... biosciences ventures invited to participate in the annual program. Twelve ventures will participate ... and a professional network. All startups receive an entrepreneur coach, access to active ...
Breaking Biology Technology:
Cached News: