Navigation Links
The roots of civilization trace back to ... roots

About five to seven million years ago, when the lineage of humans and chimpanzees split, edible root plants similar to rutabagas and turnips may have been one of the reasons. According to research by anthropologists Greg Laden of the University of Minnesota and Richard Wrangham of Harvard University, the presence of fleshy underground storage organs like roots and tubers must have sustained our ancestors who left the rain forest to colonize the savannah. They have published their research in the October issue of the Journal of Human Evolution.

"You can think of roots as a kind of 'conveyor belt' ... they were somewhat available in the forest, but abundant on the savannah," said Laden. "Once roots were 'discovered,' chimp-like creatures would not only be able to survive on the savannah, but may well have been compelled to extend their range into more and more open habitats."

When our ape ancestors moved -- for reasons unknown -- onto the open, relatively treeless savannah, they left behind the rain forest and its abundance of fruit and leaves, the mainstays of modern chimpanzee diets. Laden and Wrangham believe that savannah-dwellers may have adopted game as their primary food in place of fruit. But for a fallback food, they may well have taken to eating roots and tubers, which are much more abundant on savannahs than in rain forests.

In the article, Laden and Wrangham say that the evidence lies in the fossil record, specifically teeth and jaws. The teeth and jaws of savannah dwelling apes evolved into large massive jaws, jaw muscles and molars, ideal for grinding roots instead of shearing leaves. The size of the teeth and jaws reflect the apes' secondary food source (roots) instead of primary foods like meats and fruits, which do not require such massive chewing abilities.

While our ancient ancestors may have left the rain forest for the savannah in pursuit of game meat, it was the ability to find and eat roots that may have contri
'"/>

Source:University of Minnesota


Page: 1 2

Related biology news :

1. Scientists discover the cellular roots of graying hair
2. Two NIH initiatives launch intensive efforts to find roots of common diseases
3. Genetic roots of bipolar disorder revealed by first genome-wide study of illness
4. Researchers trace evolution to relatively simple genetic changes
5. MSI releases moleculizer - a new approach to simulation of intracellular biochemical networks
6. Bone Density Recovers After Teens Stop Injected Contraceptive
7. Of mice and mens (and womens) contraceptives
8. Critical step traced in anthrax infection
9. DNA traces evolution of extinct sabertooths and the American cheetah-like cat
10. Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace
11. Tracking the memory trace
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: The roots civilization trace back roots

(Date:8/29/2014)... Researchers at UC Davis have made some surprising ... infection. Studying simian immunodeficiency virus (SIV), the team ... Paneth cells are early responders to viral invasion ... producing a cytokine called interleukin-1 beta (IL-1β). ... IL-1β causes breakdown of the gut epithelium that ...
(Date:8/29/2014)... recently, little has been known about what genetic changes ... of scientists, one of whom is a University of ... that genes controlling the development of the brain and ... The study was published Aug. 28 in Science ... is online at http://www.sciencemag.org/ ., The domestication of ...
(Date:8/29/2014)... over the last 120,000 years may have influenced ... researchers led by City College of New York ... metric called "phylogeographic endemism." , It quantifies the ... is restricted in geographical space. , Dr. Carnaval, ... researchers from institutions in Brazil, Australia and the ...
Breaking Biology News(10 mins):The early cost of HIV 2New research reveals how wild rabbits were genetically transformed into tame rabbits 2New research reveals how wild rabbits were genetically transformed into tame rabbits 3CCNY team defines new biodiversity metric 2
... researchers may have found a way to deliver chemotherapeutic ... healthy body cells. If successful, the invention of ... cancer cells and alleviate the harmful side effects that ... Marek Romanowski, an associate professor of biomedical engineering in ...
... commercial and recreational fish species, may be more vulnerable ... a new study published by scientists from NOAA, The ... Marine and Atmospheric Science. An expanding zone ... the Atlantic Ocean is encroaching upon these species, preferred ...
... by a team of researchers in New York and ... belief that the pterygotid eurypterids ("sea scorpions") were high-level ... the seas from about 470 to 370 million years ... and, arguably, scariest-looking arthropods known to have evolved on ...
Cached Biology News:Invention could improve cancer drug delivery, lessen harmful effects of chemotherapy 2Invention could improve cancer drug delivery, lessen harmful effects of chemotherapy 3Invention could improve cancer drug delivery, lessen harmful effects of chemotherapy 4Growing hypoxic zones reduce habitat for billfish and tuna 2Pterygotid sea scorpions: No longer terror of the ancient seas? 2
(Date:8/28/2014)... YORK , Aug. 28, ... that a new market research ... catalogue: Whole Exome ... Kits (Library Preparation, Target Enrichment), ... (Sequencing by Synthesis), by Application ...
(Date:8/28/2014)... 2014   SunTrust Robinson Humphrey (STRH) ... to its equity research team in biotechnology and ... in equity research demonstrates our commitment to providing ... enhance their investment decision making," said Biff ... continue to make significant investments in differentiated content ...
(Date:8/28/2014)... new work by a Florida State University research team ... take your temperature, emit white light, and convert photon ... looks like a butterfly. , Biwu Ma, associate professor ... the FAMU-FSU College of Engineering, created the molecule in ... to discover that his creation has many other unique ...
(Date:8/28/2014)... August 28, 2014 Earlier this month, ... in partnership with the U.S. Air Force on ... The results indicated that this type of fuel made ... and will be important to America’s Eco friendly future. ... has a mandate to become independent of foreign oil ...
Breaking Biology Technology:Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 2Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 3Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 4Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 5Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 6Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 7Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 8Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 9Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 10Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 11Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 12Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 13SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 3Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices 2Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 2Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 3Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 4Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 5
... 2011 "ALBERT EINSTEIN" World Award of Science to Professor ... Professor University of Toronto, Canada. The members ... the winner of the 2011 "ALBERT EINSTEIN" World Award ... of nanochemistry that have helped to define and establish ...
... DIEGO, Sept. 6, 2011 Anadys Pharmaceuticals, Inc. (Nasdaq: ... the Company,s presentation at the Stifel Nicolaus Healthcare Conference to ... PDT).  The conference is being held at the Four Seasons ... Officer of Anadys, will provide an overview of Anadys and ...
... French genome engineering specialist, will present at the UBS Global Life ... at the MidCap Event in Paris on September 22 & 23, ... and the development strategy of the Cellectis group at the UBS ... on Tuesday, September 20, 2011 at 11:30 am ET. ...
Cached Biology Technology:2011 Awards of World Cultural Council 22011 Awards of World Cultural Council 32011 Awards of World Cultural Council 42011 Awards of World Cultural Council 5Anadys Pharmaceuticals Updates Its Presentation Date at the Stifel Nicolaus Healthcare Conference 2
UV LAMP 300 NM 8W T5, 1 EA. Category: Nucleid Acid Detection Systems....
MOUSE ANTI S. MUTANS PEPTIDOGLYCAN...
MOUSE ANTI NEUROFILAMENTS 140+160 KD...
EGTA, 50 g. Ethylene glycol-O,O-bis-[2-amino-ethyl]-N,N,N,N,-tetraacetic acid.Assay: > 99.0%. Category: Nucleotides & Enzymes & Biochemicals, Ultrapure Biochemicals ....
Biology Products: