Navigation Links
From ocean to land: The fishy origins of our hips
Date:5/14/2013

New research has revealed that the evolution of the complex, weight-bearing hips of walking animals from the basic hips of fish was a much simpler process than previously thought.

Tetrapods, or four-legged animals, first stepped onto land about 395 million years ago. This significant change was made possible by strong hipbones and a connection through the spine via an ilium - features that were not present in the fish ancestors of tetrapods.

In a study published in the journal Evolution and Development, Dr Catherine Boisvert of the Australian Regenerative Medicine Institute at Monash University, MacQuarie University's Professor Jean Joss and Professor Per Ahlberg of Uppsala University examined the hip structures of some of human's closest fish cousins.

They found the differences between us and them are not as great as they appear - most of the key elements necessary for the transformation to human hips were actually already present in our fish ancestors.

Dr Boisvert and her collaborators compared the hip development - bones and musculature - of the Australian lung fish and the Axolotl, commonly known as the Mexican Walking Fish.

The results showed that, surprisingly, the transition from simple fish hip to complex weight-bearing hip could be done in a few evolutionary steps.

"Many of the muscles thought to be "new" in tetrapods evolved from muscles already present in lungfish. We also found evidence of a new, more simple path by which skeletal structures would have evolved," Dr Boisvert said.

The researchers found that the sitting bones would have evolved by the extension of the already existing pubis. The connection to the vertebral column could have evolved from an illiac process already present in fish.

"The transition from ocean-dwelling to land-dwelling animals was a major event in the evolution of terrestrial animals, including humans, and an altered hip was an essential enabl
'/>"/>

Contact: Emily Walker
emily.walker@monash.edu
61-399-034-844
Monash University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Oceans acidifying faster today than in past 300 million years
2. Rising ocean temperatures harm protected coral reefs
3. Study by Haverford College professor reveals unprecedented impact of Deepwater Horizon on deep ocean
4. WHOI researchers, collaborators receive $1.4 million grant to study life in oceans greatest depths
5. Oceanographers develop method for measuring the pace of life in deep sediments
6. Corals could survive a more acidic ocean
7. Ocean acidification linked to larval oyster failure
8. Wind pushes plastics deeper into oceans, driving trash estimates up
9. Scientists provide first large-scale estimate of reef shark losses in the Pacific Ocean
10. First satellite tag study for manta rays reveals habits and hidden journeys of ocean giants
11. Plastic trash altering ocean habitats, Scripps study shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/29/2014)... rise of the Tibetan plateau -- the largest topographic ... for both its profound effect on climate and its ... GSA Bulletin , Katharine Huntington and colleagues employ ... using modern and fossil snail shells to investigate the ... , Views range widely on the timing of ...
(Date:8/28/2014)... German . ... to a striking pattern of blue stripes alternating with golden ... cells, and yellow cells emerge during growth in the skin ... mosaic to compose the characteristic colour pattern. ,While ... interact to form proper stripes, the embryonic origin of the ...
(Date:8/28/2014)... Bethesda, MD FASEB MARC (Maximizing Access to ... recipients for the Genetics Society of America,s 27th ... October 3, 2014 in Pacific Grove, California. ... entry of students, post doctorates and scientists from ... science community and to encourage the participation of ...
Breaking Biology News(10 mins):Snails tell of the rise and fall of the Tibetan Plateau 2Snails tell of the rise and fall of the Tibetan Plateau 3Snails tell of the rise and fall of the Tibetan Plateau 4Snails tell of the rise and fall of the Tibetan Plateau 5Snails tell of the rise and fall of the Tibetan Plateau 6Snails tell of the rise and fall of the Tibetan Plateau 7How the zebrafish gets its stripes 2How the zebrafish gets its stripes 3
... A new study spearheaded by the University ... environmental monitoring of institutional water systems can help ... better known as Legionnaires disease. Reported recently in ... 20-hospital study also calls for reconsideration of the ...
... had to rely on time-consuming and uncertain behavioural examinations ... multiple sclerosis, Alzheimer,s and schizophrenia. ,Research published next ... Engineering suggests that we could soon be able to ... the tiny magnetic fields produced by neuron activity in ...
... the heat, its a sign that somethings wrongand a ... But turning up the temperature can have a down ... children, high fever can trigger fever-induced (febrile) seizures. While ... resulting from infection or heatstroke of over 108˚F (42˚C) ...
Cached Biology News:Study finds environmental tests help predict hospital-acquired Legionnaires' disease risk 260 second test could help early diagnosis of common brain diseases 2Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures 2
(Date:8/29/2014)... Antonio, TX (PRWEB) August 29, 2014 ... and ISO 13485:2003 certified, GAMP® 5 compliant imaging ... awarded an international Phase II clinical trial to ... lymphoma. , Throughout this trial, Intrinsic Imaging will ... not limited to, protocol and charter development, site ...
(Date:8/28/2014)... A new research platform uses a laser ... structures undergoing stress and heating, an approach ... for microelectronics and batteries., This new technique, ... how heating and the surface stress of ... have discussed the merits of surface-stress influence ...
(Date:8/28/2014)...   SunTrust Robinson Humphrey (STRH) today ... its equity research team in biotechnology and oilfield ... equity research demonstrates our commitment to providing our ... their investment decision making," said Biff Woodruff ... to make significant investments in differentiated content at ...
(Date:8/28/2014)... Woodstock, Vt. (PRWEB) August 28, 2014 ... microbiology testing around the world is available from ... industrial diagnostics companies. “ Industrial Microbiology Market Review, ... the Industrial Market ” (IMMR—4) tracks and compares ... in in North America, Europe and Asia, and ...
Breaking Biology Technology:Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 32 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 3
... Sagent Pharmaceuticals, Inc.,a privately-held specialty pharmaceutical company, today ... Red Cross to assist the victims,of Monday,s earthquake ... the global community, we were saddened by the ... said Jeffrey M. Yordon,chief executive officer, founder, and ...
... NANJING, China, May 14 Simcere Pharmaceutical,Group (NYSE: SCR ... manufacturer of the patented anti-cancer biotech,product Endu in China, today ... investor conferences:, * Brean Murray Carret & ... Waldorf-Astoria in New York on Monday, May 19, 2008 ...
... 1c Study Demonstrates Dose-dependent Activity of Antidote Component, ... today announced,the Journal of Thrombosis and Haemostasis, the ... Haemostasis, has published the,Phase 1c clinical results of ... system comprised of an aptamer-based anticoagulant,RB006, and its ...
Cached Biology Technology:Simcere Pharmaceutical Group to Participate in Upcoming Investor Conferences in New York 2Regado Biosciences' REG1 Anticoagulation System Study Results Published in the Journal of Thrombosis and Haemostasis 2Regado Biosciences' REG1 Anticoagulation System Study Results Published in the Journal of Thrombosis and Haemostasis 3Regado Biosciences' REG1 Anticoagulation System Study Results Published in the Journal of Thrombosis and Haemostasis 4
... space and organize gloves, safety glasses, ... are the perfect benchtop storage bins ... processing and manufacturing. Clear static-dissipative PVC ... they attract. Many other sizes and ...
... dUTPase The thermostable dUTPase(pyrococcus ... PCR (using proofreading DNA polymerases). ... PCR reactions and dNTP solutions. ... proofreading DNA polymerase reaction can prevent ...
... AVOID FREEZE/THAW CYCLES. An assay kit designed ... Western blotting. PARP is an enzyme implicated ... apoptosis, PARP is cleaved by caspase-3. Cleavage ... to 85 kDa is a hallmark of ...
... save space and organize gloves, ... other garb. They are the ... small parts used in labs, ... Many other sizes and custom ...
Biology Products: