Navigation Links
Insect diet helped early humans build bigger brains, study suggests
Date:7/2/2014

h includes cognition related to object handling," Melin said. "This may explain the occurrence of tool use in some capuchin lineages, but not in others."

Genetic analysis of mitochondial chromosomes suggests that the Sapajus-Cebus diversification occurred millions of years ago in the late Miocene epoch.

"We predict that the last common ancestor of Cebus and Sapajus had a level of SMI more closely resembling extant Cebus monkeys, and that further expansion of SMI evolved in the robust lineage to facilitate increased access to varied embedded fallback foods,necessitated by more intense periods of fruit shortage," she said.

One of the more compelling modern examples of this behavior, said Melin, is the seasonal consumption of termites by chimpanzees, whose use of tools to extract this protein-rich food source is an important survival technique in harsh environments.

What does this all mean for hominids?

While it's hard to decipher the extent of seasonal dietary variations from the fossil record, stable isotope analyses indicate seasonal variation in diet for at least one South African hominin, Paranthropus robustus. Other isotopic research suggests that early human diets may have included a range of extractable foods, such as termites, plant roots and tubers.

Modern humans frequently consume insects, which are seasonally important when other animal foods are limited.

This study suggests that the ingenuity required to survive on a diet of elusive insects has been a key factor in the development of uniquely human skills:

It may well have been bugs that helped build our brains.


'/>"/>

Contact: Gerry Everding
gerry_everding@wustl.edu
314-935-6375
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Crabs, insects and spiders vulnerable to oil spill, but also resilient
2. Entomology 2012 to present 105 insect symposia in November
3. A bit touchy: Plants insect defenses activated by touch
4. UCSB study shows forest insects and diseases arrive in US via imported plants
5. Unique adaptations to a symbiotic lifestyle reveal novel targets for aphid insecticides
6. Jurassic pain: Giant flea-like insects plagued dinosaurs 165 million years ago
7. Insect glands may illuminate human fertilization process
8. Protein signal is crucial for accurate control of insect size
9. Insect scientists to meet in Lincoln, Neb., in June
10. New rearing system may aid sterile insect technique against mosquitoes
11. NHM entomologist wins grant to investigate mega-diverse insect order
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Insect diet helped early humans build bigger brains, study suggests
(Date:10/19/2014)... the last 30 years contributed only marginally to ... time, according to a new study published in ... access is fundamental to development: it brings improvements ... and health," says IIASA researcher Shonali Pachauri, who ... is widely agreed to be an important goal ...
(Date:10/17/2014)... German . ... in order to reproduce? And why are there two sexes ... latest issue of the research journal Molecular Human Reproduction ... Ramm from Bielefeld University Bielefeld has compiled this special issue ... a female to copulate with several males in quick succession ...
(Date:10/16/2014)... new synthesis of recent research findings to inform their ... two states. , The Ecology and Management of ... Synthesis of the Relevant Biophysical Science and Implications for ... the U.S. Forest Service,s Pacific Northwest Research Station, is ... a synthesis of the large body of scientific information ...
Breaking Biology News(10 mins):Improved electricity access has little impact on climate change 2Sperm wars 2New report synthesizes best available science on management of moist mixed-conifer forests 2
... that farmed Atlantic salmon escapees constitute to wild ... about farmed salmon yet heritable changes that have ... are largely unknown. , In new research published ... scientific evidence that farmed salmon have evolved genetically ...
... and heart inflammation takes a "back door" approach to ... human cells. Broadening knowledge of how viruses cause infection, ... has evolved to bypass the body's defenses. , "This ... cells," said Jeffrey M. Bergelson, M.D., a pediatric infectious ...
... wrong, researchers at the University of California, San Diego ... in a number of troublesome diseases are actually related. ... by disguising themselves, then hijacking their hosts. , Jack ... of Pharmacology and Cellular and Molecular Medicine at the ...
Cached Biology News:Research details how a virus hijacks cell signals to cause infection 2UCSD team unmasks family of immune system invaders 2UCSD team unmasks family of immune system invaders 3
(Date:10/22/2014)... According to new market research report ... Integration, Deployment & Support), by Service Model (SaaS, ... Others (Hybrid & Community)) - Global Forecast to ... Cloud Professional Services Market into various sub-segments with ... also identifies the drivers and restraints for this ...
(Date:10/22/2014)... Oct. 22, 2014 /PRNewswire/ - iCo Therapeutics ("iCo" or ... next steps for its Oral Amphotericin B program.  ... in vitro work involving samples from ... plans to complete pre clinical studies and regulatory ... 1A clinical trial, utilizing approximately $700,000 of funding ...
(Date:10/22/2014)... , Oct. 22, 2014 Research and ... Electronics Market by Material, by Application, Geography - Global ... their offering. Organic electronics, also called ... of material science which deals with small conductive molecules ... because small molecules and polymers are carbon based, made ...
(Date:10/20/2014)... The report “Pharmacy Automation Systems Market ... Labeling Systems, Table-top Counters) by End-user (Inpatient Pharmacy ... Trends to 2019” analyzes and studies the major ... Europe, Asia-Pacific, and the Rest of the World ... figures spread through 300 pages and in-depth TOC ...
Breaking Biology Technology:Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5iCo Therapeutics Announces Advancement of Oral Amphotericin B Program 2iCo Therapeutics Announces Advancement of Oral Amphotericin B Program 3Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 2Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 2Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 4
... Nov. 27 /PRNewswire-FirstCall/ - Oncolytics Biotech Inc. (TSX:,ONC, ... been granted,U.S. Patent 7,300,650 entitled "Reovirus for the ... the reovirus to treat cancers that,have inactivated PKR, ... Ras or,by other factors. PKR is a host ...
... their eyes need to capture all the light available. To ... surface of their eyes which allow almost no light to ... scientists at MicroBridge, a project at Cardiff Universitys Manufacturing Engineering ... lens for use in a low light environment. , The ...
... Mass., Nov. 26 Cambridge Research &,Instrumentation, Inc. ... systems in North America. The Maestro 2 received ... Molecular Imaging/Academy of Molecular,Imaging joint conference for in ... Imaging Workshop as well. Maestro 2, the fully,automated ...
Cached Biology Technology:Oncolytics Biotech Inc. Announces Issuance of 24th U.S. Patent 2CRi Announces Maestro 2, the Next Generation in Vivo Optical Imaging Systems 2
The PROTEAN II slab gel casting stand is a component of the PROTEAN II XL and xi casting apparatus. It is supplied with gaskets....
Mouse monoclonal [H4B4] to LAMP2 - Lysosome Marker (Phycoerythrin) ( Abpromise for all tested applications). entrezGeneID: 3920 SwissProtID: P13473...
... NIS-Elements revolutionizes imaging software for the ... to microscopes, cameras, components and peripherals ... achiving tools. Its intuitive interface simplifies ... times while providing powerful features such ...
AVOID FREEZE/THAW CYCLES. Recognizes the ~32 kDa DNase IIα chain and the ~40 kDa proenzyme. DNase II causes both DNA condensation and DNA fragmentation. ...
Biology Products: