Navigation Links
Marine snails get a metabolism boost
Date:5/3/2011

Durham, NC Most of us wouldn't consider slow-moving snails to be high-metabolism creatures. But at one point in the distant past, snail metabolism sped up, says a new study of marine snails in the journal Paleobiology.

"Many of the marine snails we recognize today such as abalone, conchs, periwinkles and whelks require more than twice as much energy to survive as their ancestors did," said co-author Seth Finnegan of the California Institute of Technology.

The findings come from a new analysis of snail fossils formed one to two hundred million years ago, during a period dubbed the Marine Mesozoic Revolution.

Estimating the metabolism of an animal that lived millions of years ago isn't easy. But body size gives us a clue, the authors said. In animals alive today, animals with bigger bodies tend to have higher basal metabolic rates, they explained.

"Bigger-bodied creatures simply require more calories to carry out basic functions," Finnegan said.

By assembling a database of several thousand species of living and extinct snails, the researchers were able to compile body size measurements from the snail fossil record stretching back more than 200 million years, and compare them to physiological data from different-sized snails living today.

The overall trend? Between 200 and 80 million years ago, the resting metabolic rate of tropical marine snails more than doubled, said co-author Jonathan Payne of Stanford University.

The driving force for this change was probably diet, the authors argue. Clues from fossilized shells suggest that prior to this time, most marine snails fed on plants and decaying organic matter. Then, over time, some snails evolved to feed on each other, Finnegan explained.

"To the best our ability to tell from their fossilized remains, almost none of the snails that lived prior to the Marine Mesozoic Revolution were predatory," Finnegan said. "Then the snails that
'/>"/>

Contact: Robin Ann Smith
rsmith@nescent.org
919-668-4544
National Evolutionary Synthesis Center (NESCent)
Source:Eurekalert

Page: 1 2

Related biology news :

1. Pew announces 2011 recipients of distinguished marine conservation fellowship
2. Seafloor recovery from fishing gear impacts in Stellwagen Bank Marine Sanctuary slow, unstable
3. The ultimate camo: Team to mimic camouflage skill of marine animals in high-tech materials
4. Scotlands first marine reserve already producing benefits
5. Marine organisms with eternal life can solve the riddle of aging
6. VIMS study: Propeller turbulence may affect marine food webs
7. Studies of marine animals aim to help prevent rejection of transplanted organs
8. Death -- not just life -- important link in marine ecosystems
9. Human impacts on the marine ecosystems of Antarctica
10. New device uses submarine technology to diagnose stroke quickly
11. Algae, bacteria hogged oxygen after ancient mass extinction, slowed marine life recovery
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/14/2015)... Conn. , April 14, 2015 NXT-ID, ... a biometric authentication company focused on the growing mobile ... been nominated for the 2015 New York Design Awards ... The Design100, New York City Design Awards are part ... based on over 2,500 ratings from the marketplace, industry ...
(Date:4/8/2015)... , April 8, 2015  Infinisource, a ... and services, and Morpho, a leading supplier of ... to produce the market,s most advanced biometrically-enabled time ... iSolved NXG time clock is setting a bold, ... labor data for the small and mid-size employer. ...
(Date:4/2/2015)... Fingerprint Cards (FPC) has received ... the distributor World Peace Industrial Group (WPI), part of ... the major part of the shipments will take place ... smartphone manufacturers in China . The ... communicated revenue guidance of + 1 000 MSEK for 2015.  ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 3Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2
... (Jan. 7, 2013) -- The ability to focus and ... to two months following brain concussions suffered by high ... of Oregon. Research team members, in an interview, ... longer recovery periods than current practices dictate to lower ...
... a new compound that restores the health of mice ... otherwise dangerous bacterial infection. The new compound targets an ... essential to bacterial survival. The research team, led ... University of California, San Diego, reports the new findings ...
... York, NY (January 7, 2013) The Damon Runyon ... approaches to fighting cancer have been named 2013 recipients ... of $450,000 over three years is awarded each year ... to significantly impact the prevention, diagnosis and treatment of ...
Cached Biology News:Cognitive deficits from concussions still present after 2 months 2Cognitive deficits from concussions still present after 2 months 3New compound overcomes drug-resistant Staph infection in mice 2New compound overcomes drug-resistant Staph infection in mice 3Damon Runyon-Rachleff Innovation Awards granted for pioneering ideas in cancer research 2Damon Runyon-Rachleff Innovation Awards granted for pioneering ideas in cancer research 3Damon Runyon-Rachleff Innovation Awards granted for pioneering ideas in cancer research 4Damon Runyon-Rachleff Innovation Awards granted for pioneering ideas in cancer research 5
(Date:4/28/2015)... According to a 2013 report from the ... treatment from burn injuries per year. Despite several advances ... of scars with subsequent contractures remains a major problem ... is no adequate treatment. Contractures are a permanent tightening ... cause permanent deformity. , Synedgen has developed a ...
(Date:4/28/2015)... April 28, 2015 Dr. Harton will ... and customer service operations across the products of Fertility ... the first and only FDA-cleared test to use time ... in embryo selection during IVF. , Dr. Harton has ... of Reproductive Sciences, including both laboratory management and IVF ...
(Date:4/28/2015)... April 28, 2015 Reproductive endocrinologist Dr. ... in 7 couples battling infertility in this country, testified on ... Texas as the first state in the nation to consider ... embryos to couples who desire to receive them. , Infertility ... fact that infertility is one of the few medical diseases ...
(Date:4/27/2015)... WICHITA, Kan. , April 27, 2015 /PRNewswire-USNewswire/ ... of cancer cells is their ability to utilize ... metabolic alteration of cancer cells is called the ... glycolysis in spite of high oxygen presence, leading ... plentiful oxygen, cancer cells still choose glucose fermentation. ...
Breaking Biology Technology:Synedgen Burn Treatment Results Presented at Premier Wound Conference 2Synedgen Burn Treatment Results Presented at Premier Wound Conference 3Progyny Appoints Gary Harton as Group Senior Vice President, Commercial Development 2Texas Fertility Center Supports a Groundbreaking HB1145 that Facilitates Embryo Donation in Texas 2Texas Fertility Center Supports a Groundbreaking HB1145 that Facilitates Embryo Donation in Texas 3Study Indicates Cancer Cells Alter Glucose Metabolism to Enhance Energy Production and Cell Growth 2
... Israel and JERSEY CITY, New Jersey, July ... ), a leader in,the development of microRNA-based ... successfully completed the acquisition of Parkway,Clinical Laboratories ... lab located in Bensalem, Pennsylvania, for an ...
... dash of nanoparticles to standard mixes of lubricants ... energy-saving chill pill for factories, hospitals, ships, and ... results from National Institute of Standards and Technology ... NIST experiments with varying concentrations of nanoparticle additives ...
... Least 260 Jobs, LOWER SALFORD TOWNSHIP, Pa., ... break ground today for the new North,American headquarters ... research, development and manufacturing services for pharmaceutical and,biotechnology ... a state investment of $9,million in the project. ...
Cached Biology Technology:Rosetta Genomics Completes Acquisition of Parkway Clinical Laboratories Inc. 2Rosetta Genomics Completes Acquisition of Parkway Clinical Laboratories Inc. 3Rosetta Genomics Completes Acquisition of Parkway Clinical Laboratories Inc. 4Rosetta Genomics Completes Acquisition of Parkway Clinical Laboratories Inc. 5Cool! Nanoparticle research points to energy savings 2Pennsylvania Governor Rendell Breaks Ground for Global Pharmaceutical Services Company's North American Headquarters 2Pennsylvania Governor Rendell Breaks Ground for Global Pharmaceutical Services Company's North American Headquarters 3
... cytopathic effect inhibition assays, also known as CPE ... culture supernatents; serum from PK studies and delivery ... defined as the quantity of interferon required per ... infection by 50%. All standards used ...
...
... α-Secretase Activity Kit ADAM17 Activity Kit TNF-α ... Tests. PROTECT FROM LIGHT. AVOID FREEZE/THAW CYCLES. ... specific and sensitive assay designed to measure ... biological samples and for screening enzyme inhibitors. ...
... Agarose Gel-Digesting Preparation contains a unique β-agarose ... quantitative recovery of intact DNA and RNA ... following electrophoresis in TAE, TBE, MOPS, or ... directly in the TAE, TBE, MOPS, and ...
Biology Products: