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

Scientists have revealed what may well be the first pervasive rule of evolution.

In a study published in the Proceedings of the National Academy of Sciences researchers have found evidence which suggests that evolution drives animals to become increasingly more complex.

Looking back through the last 550 million years of the fossil catalogue to the present day, the team investigated the different evolutionary branches of the crustacean family tree.

They were seeking examples along the tree where animals evolved that were simpler than their ancestors.

Instead they found organisms with increasingly more complex structures and features, suggesting that there is some mechanism driving change in this direction.

If you start with the simplest possible animal body, then theres only one direction to evolve in you have to become more complex, said Dr Matthew Wills from the Department of Biology & Biochemistry at the University of Bath who worked with colleagues Sarah Adamowicz from from the University of Waterloo (Canada) and Andy Purvis from Imperial College London.

Sooner or later, however, you reach a level of complexity where its possible to go backwards and become simpler again.

Whats astonishing is that hardly any crustaceans have taken this backwards route.

Instead, almost all branches have evolved in the same direction, becoming more complex in parallel.

This is the nearest thing to a pervasive evolutionary rule thats been found.

Of course, there are exceptions within the crustacean family tree, but most of these are parasites, or animals living in remote habitats such as isolated marine caves.

For those free-living animals in the rat-race of evolution, it seems that competition may be the driving force behind the trend.

Whats new about our results is that they show us how this increase in complexity has occurred.

Strikingly, it looks
'/>"/>

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:12/17/2014)... 2014 Valencell, a leader in performance biometric ... to industry leaders such as Intel, Jabra, Atlas, and ... wearable products. These products will be showcased at CES ... Vegas . "Our partners choose ... robust – with the clinical data to back it ...
(Date:12/11/2014)... --Research and Markets , ... ) has announced the addition of the ... to their offering. One major ... technology. With continuous advances in technology, it is ... standard that meets the needs and expectations of ...
(Date:12/10/2014)... 8, 2014 You,ve been here before: you desperately ... remember your password, site key or the answer to your ... grade teacher? Today, Hoyos Labs , ... that will finally put an end to the frustration that ... . 1U leverages a user,s smartphone to acquire his ...
Breaking Biology News(10 mins):Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... skin. Cancer is not a static disease but during ... defences adapting to new environmental circumstances, protecting against chemotherapy ... Until now little was known about the mechanisms ... is a particularly intriguing way in which a tumour ...
... of carbon in the world,s oceans, which cover 70 ... climate cycles, with many questions remaining unanswered. Between 200 ... "twilight zone" where insufficient sunlight penetrates for microorganisms to ... resident at these depths capture carbon dioxide that they ...
... of spring-run Chinook salmon in California by the end ... at UC Davis, the Stockholm Environment Institute and the ... for managing water resources to protect the salmon runs, ... Thompson, director of the Center for Aquatic Biology and ...
Cached Biology News:Why cancer cells change their appearance? 2Up from the depths: How bacteria capture carbon in the 'twilight zone' 2Warming streams could be the end for salmon 2
(Date:12/22/2014)... 2014 ITRA Global, one of the ... commercial real estate, has further expanded its global reach ... and Brisbane, Western Australia, reports Mylinda Vick, CCIM, Chairman ... ITRA Global / ACORPP (Australian Corporate Property and Projects) ... providing property services to a wide range of clients ...
(Date:12/19/2014)... MA (PRWEB) December 19, 2014 Charm ... MRLAFMQ test for the Detection of Aflatoxin M1 in ... to receive independent third party validation. The peer reviewed ... Unit of the Institute for Agricultural and Fisheries Research ... Group. , Aflatoxin B1, the most toxic aflatoxin ...
(Date:12/19/2014)... Dec. 19, 2014  Roche (SIX: RO, ROG; OTCQX: ... Inc. (Bina), a privately held company based in ... Bina provides a big data platform for centralized ... data. Bina,s proprietary on-market Genomic Management Solution, Bina-GMS ... to perform fast and scalable analyses to maximize ...
(Date:12/19/2014)... , Dec. 19, 2014 Research and Markets ... addition of the "Technology Innovations in Smart ... http://photos.prnewswire.com/prnh/20130307/600769 ... Smart Fabrics" offers a detailed assessment on technological ... Key Findings: 1. The Smart ...
Breaking Biology Technology:ITRA Global Continues International Expansion in Perth and Brisbane, Australia 2Charm Sciences Achieves Independent Validation of First 15 Minute Quantitative Screening Method for Aflatoxin M1 2Roche acquires Bina Technologies and enters the genomic informatics market 2Roche acquires Bina Technologies and enters the genomic informatics market 3Technology Innovations in Smart Fabrics (Technical Insights) 2
... Physical Laboratory (NPL) is working to provide more reliable measurement ... which could lead to much more accurate devices in the ... in 1986. It uses a nano-sized probe to feel the ... Braille on an extremely small scale. The technique can also ...
... SEATTLE, Oct. 20 Adaptive TCR Technologies, a ... the release of its immunoSEQ™ profiling service and ... provide researchers and clinicians the ability to profile ... level of detail that has never before been ...
... ACCESS PHARMACEUTICALS, INC. (OTC Bulletin ... its proprietary drug-delivery platforms to develop treatments in areas ... has submitted additional patent applications, covering its Cobalamin-mediated oral ... drugs, as a result of the growing interest surrounding ...
Cached Biology Technology:Measuring the electrical properties of nano-crystals 2Adaptive TCR Launches the immunoSEQ™ Product Line - Visualizing the Immune System With Next-Generation Sequencing. 2Adaptive TCR Launches the immunoSEQ™ Product Line - Visualizing the Immune System With Next-Generation Sequencing. 3Access Pharmaceuticals Files Additional IP For Cobalamin Oral Delivery Technology 2Access Pharmaceuticals Files Additional IP For Cobalamin Oral Delivery Technology 3
MOUSE ANTI HUMAN B-CELLS (FMC7):FITC Immunogen: HRIK cells - Human B-Lymphoblastoid line...
... are ideal for use in refrigerators, freezers, or liquid ... vibrant colors allow for color coding to project, user, ... drainage or promote cool air circulation. Supplied with 9 ... tubes. Box dimensions: 13 x 13 x ...
RABBIT ANTI PARATHION...
RABBIT ANTI BACTERIAL HISTIDASE...
Biology Products: