Navigation Links
Fluctuating environment may have driven human evolution
Date:12/24/2012

and the other is variation in ocean temperatures surrounding Africa," Freeman said. The researchers recently published their results in the Proceedings of the National Academy of Sciences along with another paper in the same issue that builds on these findings. The second paper shows that rainfall was greater when there were trees around and less when there was a grassland.

"The research points to the importance of water in an arid landscape like Africa," said Magill. "The plants are so intimately tied to the water that if you have water shortages, they usually lead to food insecurity.

"Together, these two papers shine light on human evolution because we now have an adaptive perspective. We understand, at least to a first approximation, what kinds of conditions were prevalent in that area and we show that changes in food and water were linked to major evolutionary changes."


'/>"/>

Contact: Sara LaJeunesse
SDL13@psu.edu
814-863-4325
Penn State
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Environmental threat map highlights Great Lakes restoration challenges
2. Farm soil determines environmental fate of phosphorous
3. Association of Environmental Engineering and Science Professors name Environmental Engineering Science as its official journal
4. Prickly holly reveals ability to adapt genetics to environmental change
5. Messages that speak to conservatives morals narrow partisan gap on environment
6. Conservatives can be persuaded to care more about the environment
7. Environmental chemical blocks cell function
8. Fracking in Michigan: U-M researchers study potential impact on health, environment, economy
9. Bioengineered marine algae expands environments where biofuels can be produced
10. Devotes, a project to investigate marine biodiversity and the environment of European seas
11. Southampton to help develop new crops for water-stressed environments
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fluctuating environment may have driven human evolution
(Date:4/23/2014)... Speed-reading is a technique used to read quickly. ... and skipping non-essential words and/ or sentences. Similarly ... pressure to quickly "read" genetic information. Genes that ... as the smaller the encoding message, the easier ... researchers from Instituto Gulbenkian de Cincia (IGC, Portugal) ...
(Date:4/22/2014)... secret to get your child to behave at the dinner ... Cornell study published in Eating Behaviors , found that ... bite with their front teeth such as drumsticks, whole apples, ... when these foods had been cut. "They were twice ... other kids," said Brian Wansink, Professor and Director of the ...
(Date:4/22/2014)... director of the University of Montana,s Wildlife Biology Program, co-wrote ... of the National Academy of Sciences on how streamwater ... ... the University of Washington, the Cary Institute of Ecosystem Studies, ... Research Station examined 664 water samples collected every 10 meters ...
Breaking Biology News(10 mins):Cell division speed influences gene architecture 2Biting vs. chewing 2New research focuses on streamwater chemistry, landscape variation 2
... Scientists at Chicago,s Field Museum and international collaborators have described ... the most bizarre lower spine on Earth. The interlocking ... five times more robust relative to body mass, a condition ... been an enigma to evolutionary biologists, with no known adaptive ...
... Scientists from The University of Manchester have revealed new ... white blood immune cells attack viral infections and tumours. ... for fighting infections and cancer in the human body, ... by a type of protein found on viral-infected or ...
... July 23, 2013 /PRNewswire-iReach/ -- SmartMove, Inc. ... based company is developing a smartphone based ... " and makes it easy to create healthy physical ... developed by researchers at the University of Colorado, Colorado ...
Cached Biology News:New species of Hero Shrew found in equatorial Africa 2Researchers reveal the clearest new pictures of immune cells 2SmartMove, Inc. receives $200,000 grant from the Colorado Office of Economic Development and International Trade 2
(Date:1/15/2014)... 2014   Niagara Thermal Products is proud to ... Technologies LLC ("B3") as the critical thermal component supplier ... the Army Corps of Engineers.  B3 has developed the ... contaminants and destroys VOCs and other chemical pollutants, allergens ...
(Date:1/15/2014)... ­ RedBrick Health , a fast-growing leader in ... that EmblemHealth , the New York ... providing the RedBrick Compass health assessment, combined with the ... its members. EmblemHealth is among the first health plans ...
(Date:1/15/2014)... Two champions of science, technology, engineering, and mathematics ... competition for middle and high school students designed to ... The competition presents students with real-world problems experienced by ... and Sciences is a program administered by the ...
(Date:1/15/2014)... 15, 2014 Freeslate, Inc ., ... announced that Lupin Limited, one of India’s top five ... Protégé PharmD System for high throughput solid form ... focused on a wide range of quality, affordable generic ...
Breaking Biology Technology:Niagara Thermal Products LLC Selected as Critical Supplier for Buffalo BioBlower Air Purification Systems 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3
... VA -- This time of year parents in northern ... activities. In addition to layers of warm clothing, gloves, ... available to mitigate the potential hazards of winter sports ... protect children,s heads from the stresses and forces that ...
... largely transparent to the eye and, as it turns out, ... scientists at Rice University and Rensselaer Polytechnic Institute (RPI) has ... when clad by a single continuous layer of graphene as ... the online edition of Nature Materials , is significant ...
...  PinneyAssociates, Inc., a health care consulting firm with offices in ... following promotions, effective 1 January 2012: , Karen ... , Lucy Owen, to Vice President, Program Operations and Over-the-Counter ... , Joe Gitchell, to President , John Pinney, ...
Cached Biology Technology:How well does protective headgear work for small children engaged in Winter activities? 2Water sees right through graphene 2PinneyAssociates Announces Senior Staff Promotions 2