Des animaux sous-marins impossibles à classer sur l’arbre de la vie

Provenant des profondeurs du Pacifique, ces créatures ressemblant à des champignons présentent des similitudes avec des formes de vie datant de 600 millions d’années.

C’est l’un de ces mystères dont seule la nature a le secret. Deux espèces d’animaux marins à la forme de champignons ont été découvertes dans les profondeurs de l’océan Pacifique, entre – 400 et – 1 000 mètres de profondeur, au sud-est de l’Australie. Des créatures si méconnues qu’elles n’entrent dans aucune des familles de la classification des êtres vivants.

Source: www.lemonde.fr

See on Scoop.itEnvironment and Biodiversity

Census of Deep Life call for proposals for sequencing metagenomes or 16S rDNA amplicons of communities from the deep subsurface.

Originally posted on Jonathan Eisen's Lab:

Deep Carbon Observatory: Deep Life Community (DLC) Calls for Proposals

The DLC will accept electronic submissions until September 20, 2014 for proposals to the Census of Deep Life to support high throughput sequencing of metagenomes or 16S rDNA amplicons of communities from the deep subsurface. For more information, go to: https://deepcarbon.net/feature/call-proposals-census-deep-life-sequencing-deadline-20-september-2014#.VAZOZ0u5dFw

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Tracing the genetic origin of Europe’s first farmers reveals insights into their social organization

Originally posted on Haldane's Sieve:

Tracing the genetic origin of Europe’s first farmers reveals insights into their social organization

Anna Szécsényi-Nagy, Guido Brandt, Victoria Keerl, János Jakucs, Wolfgang Haak, Sabine Möller-Rieker, Kitti Köhler, Balázs Mende, Marc Fecher, Krisztián Oross, Tibor Paluch, Anett Osztás, Viktória Kiss, György Pálfi, Erika Molnár, Katalin Sebők, András Czene, Tibor Paluch, Mario Šlaus, Mario Novak, Nives Pećina-Šlaus, Brigitta Ősz, Vanda Voicsek, Krisztina Somogyi, Gábor Tóth, Bernd Kromer, Eszter Bánffy, Kurt Alt

Farming was established in Central Europe by the Linearbandkeramik culture (LBK), a well-investigated archaeological horizon, which emerged in the Carpathian Basin, in today’s Hungary. However, the genetic background of the LBK genesis has not been revealed yet. Here we present 9 Y chromosomal and 84 mitochondrial DNA profiles from Mesolithic, Neolithic Starčevo and LBK sites (7th/6th millennium BC) from the Carpathian Basin and south-eastern Europe. We detect genetic continuity of both maternal and paternal elements during the initial spread of…

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Extinctions during human era one thousand times more than before — ScienceDaily

 
The gravity of the world’s current extinction rate becomes clearer upon knowing what it was before people came along. A new estimate finds that species die off as much as 1,000 times more frequently nowadays than they used to. That’s 10 times worse than the old estimate of 100 times.
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@NCSE: Extinctions During Human Era 1000 Times Worse. http://ift.tt/KQVPDm;
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@NautilusMag: Extinction rates increasing http://ift.tt/KQVPDm; and what this could mean for us http://ift.tt/1t281RL; via @ScienceDaily2 & @NautilusMag
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Neanderthal Fade Away

Neanderthal_modelNeanderthals, our ancient cousins whose DNA is still found in traces in modern humans, faded away in Europe about 10,000 years earlier than scientists once thought, according to a new study by researchers at Oxford. Using an improved method for radiocarbon dating, the researchers took samples from about 200 artifacts found at 40 Neanderthal cave…

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One Species Becomes Two, Inside an Insect – Phenomena: Not Exactly Rocket Science

It’s easy to imagine how a physical barrier, like a river or a mountain range, could create new species. If two populations of the same creature get stuck on either side of the divide, they won’t b…
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@Graham_Coop: Two new possible cases of sympatric speciation: http://ift.tt/1pnva3d; & http://ift.tt/1ulw6I6;
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@ericmjohnson: �� RT @edyong209: Fans of sympatric speciation, this will rock your world. http://ift.tt/1pnva3d;
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The Evidence For Evolution – Community – Google+

We collect as much as we can about evolution. Not only evolution of life on earth, but also the evolution of our universe.

Our information is based on real science, other things are for the category “Fun, Humor…”

If you do not agree with some of the articles posted here, you’re welcome to comment. If there are more accurate studies we can change the original post with the updated one.

Everyone can join. So let this community evolve…

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