Paleo story of the week
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09-04-2014, 06:57 AM
RE: Paleo story of the week
SEX

Humans and Neandertals interbred, new method confirms

"Technical objections to the idea that Neandertals interbred with the ancestors of Eurasians have been overcome, thanks to a genome analysis method described in the April 2014 issue of the journal Genetics. The technique can more confidently detect the genetic signatures of interbreeding than previous approaches and will be useful for evolutionary studies of other ancient or rare DNA samples."

http://www.sciencedaily.com/releases/201...111228.htm

I had my DNA sequencing done last year and I am 0.4% Neandertal and 1.6% Denosovian and 98% smart-ass

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19-05-2014, 07:23 AM
RE: Paleo story of the week
Ok you paleo freaks. Is this an Argentiosaurus or not ?
http://www.latinpost.com/articles/12848/...phants.htm

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19-05-2014, 09:29 AM
RE: Paleo story of the week
(19-05-2014 07:23 AM)Bucky Ball Wrote:  Ok you paleo freaks. Is this an Argentiosaurus or not ?
http://www.latinpost.com/articles/12848/...phants.htm

The article Wrote:A thigh bone they found was measured at 130 feet long and 65 feet tall -- 40m long and 20m tall, ...

That is some bad writing. Way to get it wrong, Shawn Raymundo. Weeping

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Science is not a subject, but a method.
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19-05-2014, 11:15 AM
RE: Paleo story of the week
(19-05-2014 09:29 AM)Chas Wrote:  
(19-05-2014 07:23 AM)Bucky Ball Wrote:  Ok you paleo freaks. Is this an Argentiosaurus or not ?
http://www.latinpost.com/articles/12848/...phants.htm

The article Wrote:A thigh bone they found was measured at 130 feet long and 65 feet tall -- 40m long and 20m tall, ...

That is some bad writing. Way to get it wrong, Shawn Raymundo. Weeping

No kidding, makes it sound like they found Godzilla.

“I am quite sure now that often, very often, in matters concerning religion and politics a man’s reasoning powers are not above the monkey’s.”~Mark Twain
“Ocean: A body of water occupying about two-thirds of a world made for man - who has no gills.”~ Ambrose Bierce
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06-08-2014, 12:11 PM
RE: Paleo story of the week
I figure if I am going to necro one of my threads, I might as well necro 2.

http://www.sciencedaily.com/releases/201...170341.htm

The basics are these, with increased pCO2 in the atmosphere comes increased [CO2] in the ocean (the brackets mean concentration). And CO2 in water produces carbonic acid, which is bad if you make your shell or structure out of calcite or aragonite (which dissolves in acid), like clams and corals and microrganisms like forams do. The rate of increase today is fairly easy to get at, but what about the past? Ultimately the oceans can act as a buffer and absorb any CO2 that is released, but when the rate of release exceeds the rate at which the oceans can effectively buffer and absorb it, we see a pH drop (among other changes in the climate).

Couple the changing pH with the fact that with warmer climates also comes decreased seasonality and decreased solubility of oxygen in the water, and you have a recipe for another major biocrisis.

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25-06-2015, 08:35 AM
RE: Paleo story of the week
Hallucigenia, one of the weird enigmatic fossils from the Cambrian Explosion. It is such a bizarre little creature that we've had difficulty even reconstructing how the thing walked (early reconstructions had it upside down walking on its spines instead of its velvet worm-like legs). But maybe we now have a better idea about its head?

[Image: hallucigenia.gif]

http://www.newscientist.com/article/dn27...YwRA2Az5BV

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25-06-2015, 10:42 AM
RE: Paleo story of the week
(25-06-2015 08:35 AM)TheBeardedDude Wrote:  Hallucigenia, one of the weird enigmatic fossils from the Cambrian Explosion. It is such a bizarre little creature that we've had difficulty even reconstructing how the thing walked (early reconstructions had it upside down walking on its spines instead of its velvet worm-like legs). But maybe we now have a better idea about its head?

[Image: hallucigenia.gif]

http://www.newscientist.com/article/dn27...YwRA2Az5BV

Even if I was a trained paleontologist, I would swear that some of these species came from another planet, just incredible specimens!

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25-06-2015, 10:57 AM
RE: Paleo story of the week
The Cambrian was a weird time indeed. Thumbsup

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