Navigation Links
First 'rule' of evolution suggests that life is destined to become more complex
Date:3/31/2008

far more like a disciplined march than a milling crowd.

Dr Adamowicz said: Previous researchers noticed increasing morphological complexity in the fossil record, but this pattern can occur due to the chance origination of a few new types of animals.

Our study uses information about the inter-relatedness of different animal groups the Tree of Life to demonstrate that complexity has evolved numerous times independently.

Like all arthropods, crustaceans bodies are built up of repeating segments. In the simplest crustaceans, the segments are quite similar - one after the other. In the most complex, such as shrimps and lobsters, almost every segment is different, bearing antennae, jaws, claws, walking legs, paddles and gills.

The American biologist Leigh Van Valen coined the phrase Red Queen for the evolutionary arms race phenomenon. In Through the Looking-Glass Lewis Carrolls Red Queen advises Alice that: It takes all the running you can do, to keep in the same place.

Those crustacean groups going extinct tended to be less complex than the others around at the time, said Dr Wills.

Theres even a link between average complexity within a group and the number of species alive today.

All organisms have a common ancestor, so that every living species is part of a giant family tree of life.

Dr Adamowicz added: With a few exceptions, once branches of the tree have separated they continue to evolve independently.

Looking at many independent branches is similar to viewing multiple repeated runs of the tape of evolution.

Our results apply to a group of animals with bodies made of repeated units. We must not forget that bacteria very simple organisms are among the most successful living things. Therefore, the trend towards complexity is compelling but does not describe the history of all life.


'/>"/>

Contact: Andrew McLaughlin
a.mclaughlin@bath.ac.uk
44-012-253-86883
University of Bath
Source:Eurekalert

Page: 1 2

Related biology news :

1. Which came first, the moth or the cactus?
2. First all-African GM crop is resistant to maize streak virus
3. Scientists retrace evolution with first atomic structure of an ancient protein
4. CU-Boulder team discovers first ancient manioc fields in Americas
5. First finding of a metabolite in 1 sex only
6. First orchid fossil puts showy blooms at some 80 million years old
7. First individual genome sequence published
8. U of M begins nations first clinical trial using T-reg cells from cord blood in leukemia treatment
9. UNH becomes first university in nation to use landfill gas as primary energy source
10. Scientists in first global study of poison gas in the atmosphere
11. Weight gain between first and second pregnancies associated with increased odds of male second child
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... 2014 Diabetes affects nearly 10 percent of ... diabetics: constant finger pricking to test blood glucose ... reports the development of a protein that could ... for diabetes patients. In the American Chemical Society,s ... shows off her "designer protein" that could eventually ...
(Date:8/22/2014)... important discoveries in basic and clinical research and ... into a complex offensive spanning multiple fronts. , ... lab could help find new and more selective ... that targets a specific enzyme overexpressed in certain ... from brain tumours. , Chemistry professor Christopher Cairo ...
(Date:8/22/2014)... antioxidants and can reduce free radical damage. ... oxidative stress? Jianbo Zhao and co-workers from ... University, China discovered that green tea polyphenol ... apoptosis, indicating green tea polyphenols play a ... oxidative stress. The relevant study has been ...
Breaking Biology News(10 mins):New enzyme targets for selective cancer therapies 2New enzyme targets for selective cancer therapies 3
... 2013) The world,s leading conservation organizations have joined together ... eastern lowland gorilla ( Gorilla beringei graueri ). Found ... Democratic Republic of Congo (DRC), Grauer,s gorilla is not only ... largest primate in the world. With their entire range ...
... advance toward overcoming a major barrier to tapping the ... medicine in developing new and more effective modern drugs. ... Information and Modeling . Andreas Bender and ... modern medicine. In the world,s largest international clinical trial, ...
... World, the first international conference examining the critical link ... the University of Pennsylvania from Wednesday, March 13, through ... Penn Institute for Urban Research (Penn IUR), in partnership ... Steering Committee representing nine schools and six centers, is ...
Cached Biology News:Gorillas caught in the crossfire in the DRC 2Gorillas caught in the crossfire in the DRC 3Penn conference tackles complex relationship between urbanization and food 2
(Date:8/21/2014)... (PRWEB) August 21, 2014 ... Fertilizer Industry” is a professional and in-depth ... The report provides basic Seaweed Fertilizer information, ... industry chain structure as well as industry ... analysis, including domestic market as well as ...
(Date:8/21/2014)... 21, 2014 His Majesty Willem-Alexander, King ... The Court of His Majesty Willem-Alexander, King of the ... Grand Opening of POET-DSM Advanced Biofuels’ Project LIBERTY cellulosic ... , The King will take part in the Grand ... for 11 a.m.-12:20 p.m. and tour the plant. POET-DSM ...
(Date:8/21/2014)... 2014 The College of New Rochelle ... in the Mid-Hudson Region to be designated as a ... applications from qualified “high-technology” businesses that align with the ... to have been selected for the START-UP NY program ... to stimulate economic development in New York by growing ...
(Date:8/21/2014)... Aug. 21, 2014 Mathematic studies at the ... , and funded by the Jeffrey Epstein VI Foundation ... can be visually identified for elimination. These aggressive cells are ... which shows a topological map of what to look for ... research, for while tumor cells can be extracted from biopsy, ...
Breaking Biology Technology:Internationals Seaweed Fertilizer Industry 2014 Development Trend Analysis in New Research Study at DeepResearchReports.com 2Internationals Seaweed Fertilizer Industry 2014 Development Trend Analysis in New Research Study at DeepResearchReports.com 3His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 2His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 3The College of New Rochelle Becomes First Private College in Mid-Hudson Region to Earn START-UP NY Designation 2The College of New Rochelle Becomes First Private College in Mid-Hudson Region to Earn START-UP NY Designation 3Science Power Jeffrey Epstein and Harvard University Fund Project to Visually Stop Tumor Growth 2
... Accera Inc., a privately,held biotechnology company focused on ... it has appointed William,T. Poncy, M.B.A., as vice ... commercial launch of Ketasyn (AC-1202) as a medical ... Alzheimer,s disease. "Given his strong track record ...
... Assay Development, Biomarker Identification ... and ADME/Tox Applications, ... MCET), entered into a worldwide,exclusive license and technology purchase agreement ... human liver cell lines. Corning paid MultiCell a license ...
... Alliance, the leading,management consulting firm specializing in the pharmaceutical ... as one of the best,places to work in the ... Business Journal, ranking third among midsize companies. The award,was ... annual Best,Places to Work luncheon and awards ceremony on ...
Cached Biology Technology:Accera, Inc. Names William T. Poncy Vice President of Commercial Development 2Accera, Inc. Names William T. Poncy Vice President of Commercial Development 3MultiCell Technologies Signs Worldwide Exclusive License Agreement With Corning Incorporated 2MultiCell Technologies Signs Worldwide Exclusive License Agreement With Corning Incorporated 3Campbell Alliance Named 'Best Place to Work' by Triangle Business Journal 2
... in two product models - the 5000AT+ and ... that the 6000AT+ includes a membrane desolvation unit ... improved detection limits and reduced oxides. The Ultrasonic ... elements by 10-40 times. Note that with ICP-MS ...
... is >95%NEN Radiolabeled Ligands\n\nReceptor-related research has long ... new radiolabeled ligands selected to keep pace ... range of products and services for receptor ... state-of-the-art radioligands. If you do not find ...
Request Info...
... (patent pending) was developed using a protein engineering ... DNA binding pocket of wild-type DNase I. These ... for DNA. The result is a versatile enzyme ... and an ability to maintain at least 50% ...
Biology Products: