Navigation Links
MIT research: Life after 'Snowball Earth'
Date:6/15/2011

CAMBRIDGE, Mass. -- The first organisms to emerge after an ancient worldwide glaciation likely evolved hardy survival skills, arming themselves with tough exteriors to weather a frozen climate.

Researchers at MIT, Harvard University and Smith College have discovered hundreds of microscopic fossils in rocks dating back nearly 710 million years, around the time when the planet emerged from a global glaciation, or "Snowball Earth," event. The fossils are remnants of tiny, amoeba-like organisms that likely survived the harsh post-glacial environment by building armor and reaching out with microscopic "feet" to grab minerals from the environment, cobbling particles together to make protective shells.

The discovery is the earliest evidence of shell building, or agglutination, in the fossil record. The team found a diversity of fossils, suggesting life may have recovered relatively quickly following the first major Snowball Earth event. The researchers report their findings in an upcoming issue of Earth and Planetary Science Letters.

The widely held Snowball Earth theory maintains that massive ice sheets covered the planet from pole to pole hundreds of millions of years ago. Geologists have found evidence of two major snowball periods at 710 and 635 million years ago in glacial deposits that formed close to the modern equator. Fossil records illustrate an explosion of complex, multicellular life following the more recent ice age. However, not much is known about life between the two major glaciations a period of about 75 million years that, until now, exhibited few signs of life.

"We know quite well what happened before the first Snowball, but we have no idea what happened in between," says Tanja Bosak, assistant professor of geobiology at MIT, and the paper's lead author. "Now we're really starting to realize there's a lot of unexpected life here."

Ice Age armor

Bosak's colleagues, Francis Macdona
'/>"/>

Contact: Caroline McCall
cmccall5@mit.edu
Massachusetts Institute of Technology
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Geisinger research: Antimalarial drug prevents diabetes in arthritis patients
2. K-State research: Freshwater pollution costs US at least $4.3 billion a year
3. Toothsome research: Deducing the diet of a prehistoric hominid
4. Harmonizing biobank research: An achievable world-wide goal
5. Lombardi research: Monoclonal antibodies primed to become potent immune weapons against cancer
6. UC Davis bench-to-bedside research: Promising treatment in clinical trials
7. Stem cell research: From molecular physiology to therapeutic applications
8. Nervy research: Researchers take initial look at ion channels in a model system
9. Dog bites research: UAB testing software to teach kids, dogs to interact safely
10. Consent forms for research: Have they improved in 25 years?
11. New research: Sugar substitutes help reduce caloric intake without overeating or hunger
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... Valencell, a leader in performance biometric data ... industry leaders such as Intel, Jabra, Atlas, and Scosche ... products. These products will be showcased at CES 2015, ... . "Our partners choose PerformTek ... – with the clinical data to back it up," ...
(Date:12/11/2014)... Dec. 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has announced the ... APAC Region 2015-2019"  report to their offering. ... market is advances in technology. With continuous advances ... solutions to the latest standard that meets the ...
(Date:12/10/2014)... -- You,ve been here before: you desperately need to sign ... site key or the answer to your secret question. What,s ... Today, Hoyos Labs , a digital infrastructure ... put an end to the frustration that comes with usernames, ... leverages a user,s smartphone to acquire his or her biometrics ...
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
... NEW YORK (January 14, 2008) Outbreaks of the notorious ... richest center of coral reef biodiversity on Earth, according to ... ARC Centre of Excellence for Coral Reef Studies. The ... its stomach over them and using digestive enzymes to liquefy ...
... Service Weekly PressPac with news from ACS 36 peer-reviewed journals ... the American Chemical Society as the source for this information. ... which is embargoed for 9 A. M., Eastern Time, Jan. ... Seagull blood shows promise for monitoring pollutants ...
... ARBOR, Mich.---An international study of 20,000 people found seven ... factor in heart disease, and confirmed 11 other genes ... international study led by researchers from the University of ... or confirm genetic variants that influence lipid levels, and ...
Cached Biology News:Starfish outbreak threatens corals 2American Chemical Society's weekly PressPac -- Jan. 9, 2008 2American Chemical Society's weekly PressPac -- Jan. 9, 2008 3American Chemical Society's weekly PressPac -- Jan. 9, 2008 4American Chemical Society's weekly PressPac -- Jan. 9, 2008 5American Chemical Society's weekly PressPac -- Jan. 9, 2008 6American Chemical Society's weekly PressPac -- Jan. 9, 2008 7American Chemical Society's weekly PressPac -- Jan. 9, 2008 8American Chemical Society's weekly PressPac -- Jan. 9, 2008 9Study locates cholesterol genes; finds surprises about good, bad cholesterol 2
(Date:12/19/2014)... Reports from CDC show ... from one or more chronic health conditions - including ... address some of these diseases, but may not eliminate ... face. While implanted nerve stimulation devices today offer relief, ... which can induce side effects. , To eliminate ...
(Date:12/19/2014)... Diego, CA (PRWEB) December 18, 2014 ... a limited time special on Sartorius Biohit products ... Free on mLINE pipettes, Picus Electronic Pipette Trade-in Program, ... by Health and Safety officers around the world. They ... manual pipetting. Other features include:, ,     Full ...
(Date:12/19/2014)... 18, 2014 Relmada Therapeutics, Inc. (OTCQB: RLMD), ... of chronic pain, announced the results of its annual ... was a transformational year in Relmada,s history and it ... company," said Sergio Traversa , chief executive officer ... on key financial, human resource and clinical development objectives ...
(Date:12/17/2014)... Achim Noack has been named global vice ... this position, Noack will assist Jerry Stoller, CEO and ... strategy and supervise global marketing management and implementation of ... knowledge and experience in the crop protection industry,” says ... innovative thinking will be a great asset for Stoller ...
Breaking Biology Technology:Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2Major Pipette Distributor Pipette.com Announces Sartorius Year End Specials 2Relmada Therapeutics Announces Results of Annual Shareholders Meeting 2Achim Noack Joins Stoller Group as Global Vice President of Marketing and Administration 2
... Call on Thursday, November 5, 2009 at 4:30 p.m. ... /PRNewswire-FirstCall/ - OncoGenex Pharmaceuticals, Inc. ("OncoGenex" or the "Company") ... for the third quarter and nine months ended September ... third quarter of 2009. , The following consolidated results ...
... Wound Management Technologies, Inc., (WNDM), announced today that it has ... assets of Virtual Health Technologies, Inc. (OTC Bulletin Board: VHGI). ... cash and debt, 4,000,000 shares of WNDM and a royalty ... being acquired from VHGI. WNDM closed at $2.00 ...
... Nov. 5 /PRNewswire-Asia-FirstCall/ -- BMP Sunstone,Corporation (Nasdaq: BJGP ) ... to release third quarter 2009 financial results on,Monday, November 9, ... The Company will hold a conference call at 5:00 pm ... Listeners may access the call by,dialing 1-888-713-4211 or 1-617-213-4864 ...
Cached Biology Technology:OncoGenex Reports Third Quarter 2009 Financial Results 2OncoGenex Reports Third Quarter 2009 Financial Results 3OncoGenex Reports Third Quarter 2009 Financial Results 4OncoGenex Reports Third Quarter 2009 Financial Results 5OncoGenex Reports Third Quarter 2009 Financial Results 6OncoGenex Reports Third Quarter 2009 Financial Results 7OncoGenex Reports Third Quarter 2009 Financial Results 8OTCBB-WNDM Announces LOI to Acquire VHGI Assets for $10 Million Cash/Stock 2OTCBB-WNDM Announces LOI to Acquire VHGI Assets for $10 Million Cash/Stock 3BMP Sunstone to Report Third Quarter 2009 Financial Results 2
Extremely high efficiency packaging extracts useful for transfecting our EpiFOS™ or CopyControl™ Fosmids, or any DNA vector with cos sites. A tremendous value when conpared to the competition...
... Workstation for PCR set-up Easy ... to hold 0.2 ml PCR tubes, strips or Nunc ... handling systems Removable tray can be fitted ... V-bottom 0.2 ml tube block thermal cycler formats of ...
... in DMEM and harvested at the log phase ... antigens in their native forms, cells were fixed ... a 12-well (5 mm) adhesive coated slide, with ... attachment and to minimize background staining. Each ...
...
Biology Products: