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Fake News*    ?    ! - oldviolin - Mar 27, 2017 - 9:18am
 
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How can I find RP at radio.garden ? - ScottFromWyoming - Mar 27, 2017 - 8:31am
 
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Trump - Red_Dragon - Mar 27, 2017 - 7:57am
 
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Middle-aged white Americans face declining life expectancy - kurtster - Mar 27, 2017 - 7:36am
 
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Show us your NEW _______________!!!! - n4ku - Mar 27, 2017 - 5:30am
 
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Photos you have taken of your walks or hikes. - Antigone - Mar 26, 2017 - 1:17pm
 
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punk? hip-hop? metal? noise? garage? - rhahl - Mar 26, 2017 - 10:45am
 
Lyrics that strike a chord today... - oldviolin - Mar 26, 2017 - 9:32am
 
• • • The Once-a-Day • • •  - oldviolin - Mar 26, 2017 - 8:57am
 
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Films you're excited about. - Antigone - Mar 26, 2017 - 8:06am
 
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Today in History - Red_Dragon - Mar 26, 2017 - 7:08am
 
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Little known information...maybe even facts - Skydog - Mar 25, 2017 - 4:49pm
 
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WTF??!! - Red_Dragon - Mar 25, 2017 - 7:07am
 
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YouTube: Music-Videos - sirdroseph - Mar 25, 2017 - 6:13am
 
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• • •  What's For Dinner ? • • •  - Coaxial - Mar 24, 2017 - 4:34pm
 
What are you doing RIGHT NOW? - SeriousLee - Mar 24, 2017 - 4:09pm
 
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Private messages in a public forum - oldviolin - Mar 24, 2017 - 9:35am
 
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Putin Owns Trump - Red_Dragon - Mar 24, 2017 - 4:40am
 
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Name My President - Red_Dragon - Mar 23, 2017 - 6:13pm
 
Questions. - haresfur - Mar 23, 2017 - 6:07pm
 
Science benefitting us old codgers - ScottFromWyoming - Mar 23, 2017 - 5:59pm
 
All Dogs Go To Heaven - Dog Pix - olivertwist - Mar 23, 2017 - 5:36pm
 
Country Up The Bumpkin - oldviolin - Mar 23, 2017 - 5:03pm
 
how do you feel right now? - Coaxial - Mar 23, 2017 - 5:00pm
 
HALF A WORLD - oldviolin - Mar 23, 2017 - 4:25pm
 
Places you've never been.... - pigtail - Mar 23, 2017 - 4:13pm
 
Pernicious Pious Proclivities Particularized Prodigiously - R_P - Mar 23, 2017 - 2:17pm
 
New Music - ptooey - Mar 23, 2017 - 1:14pm
 
Derplahoma Questions and Points of Interest - Red_Dragon - Mar 23, 2017 - 9:46am
 
Thanks - aflanigan - Mar 23, 2017 - 8:49am
 
Delicacies: a..k.a.. the Gross Food forum - Proclivities - Mar 23, 2017 - 7:28am
 
Oh dear god, BEES! - Antigone - Mar 23, 2017 - 6:29am
 
Index » Regional/Local » USA/Canada » Evolution! Page: 1, 2, 3 ... 116, 117, 118  Next
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Posted: Mar 19, 2017 - 4:00pm


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Posted: Mar 14, 2017 - 8:11pm

Evolution Runs Faster on Short Timescales
Examine evolution over the course of years or centuries, and you’ll find that it progresses much more quickly than it does over geologic time. Now the oldest viruses on the planet are enabling scientists to calibrate this evolutionary clock.

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Posted: Mar 1, 2017 - 12:16pm

4 billion years: World's oldest fossils unearthed

Haematite tubes from the NSB hydrothermal vent deposits that represent the oldest microfossils and evidence for life on Earth. Credit: Matthew Dodd

Remains of microorganisms at least 3,770 million years old have been discovered by an international team led by UCL scientists, providing direct evidence of one of the oldest life forms on Earth.

Tiny filaments and tubes formed by bacteria that lived on iron were found encased in quartz layers in the Nuvvuagittuq Supracrustal Belt (NSB), Quebec, Canada.

The NSB contains some of the oldest sedimentary rocks known on Earth which likely formed part of an iron-rich deep-sea hydrothermal vent system that provided a habitat for Earth's first life forms between 3,770 and 4,300 million years ago. "Our discovery supports the idea that life emerged from hot, seafloor vents shortly after planet Earth formed. This speedy appearance of life on Earth fits with other evidence of recently discovered 3,700 million year old sedimentary mounds that were shaped by microorganisms," explained first author, PhD student Matthew Dodd (UCL Earth Sciences and the London Centre for Nanotechnology). (...)

Prior to this discovery, the oldest microfossils reported were found in Western Australia and dated at 3,460 million years old but some scientists think they might be non-biological artefacts in the rocks. It was therefore a priority for the UCL-led team to determine whether the remains from Canada had biological origins.

The researchers systematically looked at the ways the tubes and filaments, made of haematite - a form of iron oxide or 'rust' - could have been made through non-biological methods such as temperature and pressure changes in the rock during burial of the sediments, but found all of the possibilities unlikely.

The haematite structures have the same characteristic branching of iron-oxidising bacteria found near other hydrothermal vents today and were found alongside graphite and minerals like apatite and carbonate which are found in biological matter including bones and teeth and are frequently associated with fossils.

They also found that the mineralised fossils are associated with spheroidal structures that usually contain fossils in younger rocks, suggesting that the haematite most likely formed when bacteria that oxidised iron for energy were fossilised in the rock. (...)


miamizsun

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Posted: Jan 9, 2017 - 4:56am

 Manbird wrote:

Never surrender! Zitzu zitsu sixgun pistol gnip. Because axto hypoxal condroizal tzoll rhoad...

 
a good example of an evolving sentence

screechie mon!
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Posted: Jan 8, 2017 - 10:50pm

 R_P wrote: 
scary shit!
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Posted: Jan 8, 2017 - 3:50pm

 miamizsun wrote:

i saw this yesterday

and it brings up serious issues

super harmful bacteria/viruses created or inadvertently directed by us using old or outdated technology

so three scenarios?

use digital editing tech to:

modify the bad bacteria to render it less harmful

modify the good bacteria to "minimize" the bad

modify human behavior or humans to be immune or as immune as possible to harmful these things

or a bit of each

btw have you seen or heard of andrew hessell?

i've posted a lot of his work here

biology is being digitized at an exponential rate which basically means it is computer code and could be edited and/or written

progress in this area (the biological action sciences) is (for lack of a better term) hopping on the back of moore's law

he is behind several projects to engineer viruses to fight cancer and other good stuff

regards

 
Never surrender! Zitzu zitsu sixgun pistol gnip. Because axto hypoxal condroizal tzoll rhoad...
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Posted: Jan 8, 2017 - 10:05am


miamizsun

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Gender: Male


Posted: Sep 10, 2016 - 7:18am

 R_P wrote: 
i saw this yesterday

and it brings up serious issues

super harmful bacteria/viruses created or inadvertently directed by us using old or outdated technology

so three scenarios?

use digital editing tech to:

modify the bad bacteria to render it less harmful

modify the good bacteria to "minimize" the bad

modify human behavior or humans to be immune or as immune as possible to harmful these things

or a bit of each

btw have you seen or heard of andrew hessell?

i've posted a lot of his work here

biology is being digitized at an exponential rate which basically means it is computer code and could be edited and/or written

progress in this area (the biological action sciences) is (for lack of a better term) hopping on the back of moore's law

he is behind several projects to engineer viruses to fight cancer and other good stuff

regards


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Posted: Sep 9, 2016 - 8:08pm

Stunning Videos of Evolution in Action
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Posted: Jun 7, 2016 - 2:34pm




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Posted: May 18, 2016 - 5:26am

Complex life a billion years earlier than thought?
Organic fragments extracted from the host rock of the Gaoyuzhuang macroscopic fossils showing well-preserved cellular structure. Credit: Maoyan Zhu.
Researchers said Tuesday they had uncovered fossils showing that complex life on Earth began more than 1.5 billion years ago, nearly a billion years earlier than previously thought.

But the evidence, published in Nature Communications, immediately provoked debate, with some scientists hailing it as rock solid, and others saying they were wholly unconvinced.

After first emerging from the primordial soup, life remained primitive and unicellular for billions of years, but some of those cells eventually congregated like clones in a colony.

Scientists even took to calling the later part of this period the "boring billion", because evolution seemed to have stalled.

But at some point there was another huge leap—arguably second in importance only to the appearance of life itself—towards complex organisms.

This transition progressively gave rise to all the plants and animals that have ever existed.

Exactly when multi-cell eukaryotes—organisms in which differentiated cells each contain a membrane-bound nucleus with genetic material—showed up has inflamed scientific passions for many decades.

The new study is sure to enrich that tradition.

"Our discovery pushes back nearly one billion years the appearance of macroscopic, multicellular eukaryotes compared to previous research," Maoyan Zhu, a professor at the Nanjing Institute of Geology and Palaeontology, told AFP.

The fossils were uncovered in Hebei Province's Yanshan region, where Mao Zedong and his communist army hunkered down during World War II before coming to power.

Zhu and colleagues found 167 measurable fossils, a third of them in one of four regular shapes—an indication of complexity. (...)

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Posted: May 6, 2016 - 8:04pm

Fossil Hunters Uncover 71-Million-Year-Old Trove in Antarctica
After a plane flight, boat ride, helicopter lift and a lot of hiking, the scientists returned with a massive cache of fossils


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Posted: May 4, 2016 - 1:15am

Endangered venomous mammal predates dinosaurs' extinction, study confirms
Researchers have sequenced the mitochondrial genome of the endangered solenodon, a venomous insectivore that diverged from other living mammals 78 million years ago.

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Posted: Apr 9, 2016 - 7:34pm

In Science, It’s Never ‘Just a Theory’

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Posted: Mar 28, 2016 - 4:15pm

Top 10 Design Flaws in the Human Body
From our knees to our eyeballs, our bodies are full of hack solutions.
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Posted: Mar 17, 2016 - 3:49pm


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Posted: Mar 16, 2016 - 4:07pm

 R_P wrote:


 
I sincerely hope so.
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Posted: Mar 16, 2016 - 4:06pm


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Posted: Mar 14, 2016 - 3:43pm

Small, brainy tyrannosaur sheds light on how T. rex evolved
Horse-sized Timurlengia euotica lacked massive, bone-snapping teeth, but was agile, with good hearing

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Posted: Feb 17, 2016 - 5:40am

What Sparked the Cambrian Explosion?
An evolutionary burst 540 million years ago filled the seas with an astonishing diversity of animals. The trigger behind that revolution is finally coming into focus

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