Navigation Links
Evolution tied to Earth movement
Date:12/18/2007

Scientists long have focused on how climate and vegetation allowed human ancestors to evolve in Africa. Now, University of Utah geologists are calling renewed attention to the idea that ground movements formed mountains and valleys, creating environments that favored the emergence of humanity.

Tectonics [movement of Earths crust] was ultimately responsible for the evolution of humankind, Royhan and Nahid Gani of the universitys Energy and Geoscience Institute write in the January, 2008, issue of Geotimes, published by the American Geological Institute.

They argue that the accelerated uplift of mountains and highlands stretching from Ethiopia to South Africa blocked much ocean moisture, converting lush tropical forests into an arid patchwork of woodlands and savannah grasslands that gradually favored human ancestors who came down from the trees and started walking on two feet an energy-efficient way to search larger areas for food in an arid environment.

In their Geotimes article, the Ganis a husband-and-wife research team who met in college in their native Bangladesh describe this 3,700-mile-long stretch of highlands and mountains as the Wall of Africa. It parallels the famed East African Rift valley, where many fossils of human ancestors were found.

Because of the crustal movement or tectonism in East Africa, the landscape drastically changed over the last 7 million years, says Royhan Gani (pronounced rye-hawn Go-knee), a research assistant professor of civil and environmental engineering. That landscape controlled climate on a local to regional scale. That climate change spurred human ancestors to evolve from apes.

Hominins the new scientific word for humans (Homo) and their ancestors (including Ardipithecus, Paranthropus and Australopithecus) split from apes on the evolutionary tree roughly 7 million to 4 million years ago. Royhan Gani says the earliest undisputed hominin was Ardipithecus ramidus 4.4
'/>"/>

Contact: M. Royhan Gani
rgani@egi.utah.edu
801-585-3539
University of Utah  
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Evolution is driven by gene regulation
2. Clones on task serve greater good, evolutionary study shows
3. Adaptation to parasites drive African fishes along different evolutionary paths
4. Uncertainty drives the evolution of cooperative breeding in birds
5. Structure of 450 million year old protein reveals evolutions steps
6. Scientists retrace evolution with first atomic structure of an ancient protein
7. Hidden interactions between predators and prey: evolution causes cryptic dynamics in ecology
8. Migrating squid drove evolution of sonar in whales and dolphins, researchers argue
9. Old developmental pathways spawn revolutionary evolutionary changes
10. Systems Biology poised to revolutionize the understanding of cell function and disease
11. Using evolution, UW team creates a template for many new therapeutic agents
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Evolution tied to Earth movement
(Date:9/17/2014)... the human retinoblastoma protein gene are a leading cause ... turned to fruit fly eyes to unlock the secrets ... paper featured on the cover of the current issue ... State University researchers provide the first detailed examination of ... the human cancer gene, said Irina Pushel, MSU undergraduate ...
(Date:9/17/2014)... decline, grasses have returned to some once-denuded patches of ... those places seems healthy again, but a new study ... coastal protection remains diminished. , "We,ve got ... back," said ecologist Mark Bertness, professor of biology at ... journal Biological Conservation . "The metric of a ...
(Date:9/17/2014)... a great deal about complex social behavior by studying ... to teach too. , With their unusually large brains ... live in a complex social environment---not merely in a ... ants, but in a dynamic setting of alliances and ... mammals: dolphins, whales, primates, and social carnivores, like hyenas ...
Breaking Biology News(10 mins):Abnormal properties of cancer protein revealed in fly eyes 2Cape Cod saltmarsh recovery looks good, falls short 2Cape Cod saltmarsh recovery looks good, falls short 3Being social: Learning from the behavior of birds 2
... life on earth, yet freshwater animals and plants are ... The dominant causes are the many stressors that affect ... by alien species, dams, over-abstraction, many forms of pollution ... sensitive to climate change which now exacerbates all these ...
... in the September 2008 issue of BioScience ... and Its Use in Basic and Applied Insect Science. ... genomes and comparative genomics are providing new insights into ... to a variety of biotechnological applications to pest management, ...
... have been diagnosed with Parkinson,s disease, could benefit from ... Craig from Queen,s School of Psychology is researching the ... have difficulty controlling their movements. The work is ... European Research Council. Dr Craig is the only ...
Cached Biology News:Water: stressed-out and overheated 2BioScience tip sheet, September 2008 2New sensory devices will aid Parkinson's and stroke patients 2
(Date:9/17/2014)... 17, 2014 Veracyte, Inc. (Nasdaq: ... the field of molecular cytology, today announced the promotion ... Mr. Hall joined Veracyte in 2010 as chief ... endocrinology. Since 2012, he has led sales, marketing, laboratory ... and billing functions. As chief operating officer, Mr. Hall ...
(Date:9/17/2014)... GLASGOW, Scotland , September 17, 2014 ... a new mode of action from a ... a decade  MGB Biopharma, a ... of anti-infectives, announces today that it has ... of its lead antibacterial, MGB-BP-3, against a ...
(Date:9/16/2014)... -- This report analyzes the worldwide markets for Bioinformatics in ... Biocontent. The report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... Annual estimates and forecasts are provided for the period 2013 ... these markets. Market data and analytics are derived from primary ...
(Date:9/16/2014)... University scientists who created a deicing film for radar ... a transparent coating for glass. , The new ... could keep glass surfaces from windshields to skyscrapers free ... radio frequencies (RF). , The technology was introduced ... Applied Materials and Interfaces . , The material ...
Breaking Biology Technology:Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 2Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 3Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 2MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 3MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 5MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 6MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 7Global Bioinformatics Industry 2Global Bioinformatics Industry 3Global Bioinformatics Industry 4Global Bioinformatics Industry 5Global Bioinformatics Industry 6Global Bioinformatics Industry 7Global Bioinformatics Industry 8Global Bioinformatics Industry 9Global Bioinformatics Industry 10Global Bioinformatics Industry 11Global Bioinformatics Industry 12Global Bioinformatics Industry 13Global Bioinformatics Industry 14Global Bioinformatics Industry 15Global Bioinformatics Industry 16Global Bioinformatics Industry 17Global Bioinformatics Industry 18Global Bioinformatics Industry 19Global Bioinformatics Industry 20Global Bioinformatics Industry 21Global Bioinformatics Industry 22Global Bioinformatics Industry 23Nanoribbon film keeps glass ice-free 2
... The Netherlands, September 26 A consortium of,experts in ... have,joined forces to develop a novel pandemic influenza vaccine ... awarded a grant of,EUR3.5 million from the European Union ... new vaccine. The so-called FluVac project will be,coordinated by ...
... Glycominds Ltd., a biodiagnostics,company specializing in glycan biomarkers ... cancer, announced today that has,entered the Biomolecular Photonic ... the Government of Israel to improve in-vivo imaging ... BMP consortium was,approved for three years and was ...
... NanoBio(R) Corporation, a,biopharmaceutical company developing novel anti-infective topicals ... today announced,the addition of four new scientists to ... Ph.D.; Susan Ciotti, Ph.D.; Robert L. Hagan, Ph.D.,and ... and commercializing,its novel topical anti-infectives and mucosal vaccines. ...
Cached Biology Technology:European Expert Consortium Combines Forces to Develop a Novel Pandemic Influenza Vaccine 2European Expert Consortium Combines Forces to Develop a Novel Pandemic Influenza Vaccine 3Glycominds Joins Biomolecular Photonic (BMP) Consortium to Develop New Molecular Imaging Technique 2NanoBio Expands Drug Development Team for Its Anti-Infective Products 2NanoBio Expands Drug Development Team for Its Anti-Infective Products 3
... I-96 Plate can be used either in ... large-scale (i.e., 96-well) purification of DNA and/or ... unique silica-based matrix make it perfect for ... RNA in = 10 l eluate per ...
AdestaTM Tissue/Cell Preservation Medium Sterile / Non-sterile: Sterility Tested Endotoxin: ...
... is the first all-inclusive collection of key ... Expression System. Methods developed by the leaders ... step-by-step protocols. This book will guide you ... strain construction and analysis, to production of ...
Rad 51C Immunogen: His-tagged human Rad 51C, over-expressed in E. coli Storage: 4 C...
Biology Products: