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Rising Star Cave spectacular new articlesMany of you might be familiar with the relatively newly discovered hominin species Homo naledi from South Africa, but you might not be familiar with the new series of articles published on the find in eLife. Originally only two of hominin individuals from Rising Star Cave were published, but new material, including some new dates for the fossils, have been published just yesterday in the journal eLife.
I will hold judgment until I have fully read all three articles, but what I have perused thus far suggests that these finds really truly are something unique and spectacular.
Luckily, for those without academic journal subscriptions, I believe that eLife is open for public reading, so at the bottom here are links to all three papers.
New fossil remains of Homo naledi from the Lesedi Chamber, South Africa
The Three Elements of the Milankovitch CyclesAccording to the Serbian geophysicist Milutin Milankovitch, there are three elements that make an ice age possible:
Eccentricity (orbital shape): Varying between 0.000055 and 0.0679 over the course of 100,000 years (1.0 being a perfect circle).Obliquity (axial tilt): Varying between 22.1 and 24.5 degrees over the course of 41,000 years.Axial precession (change in the orientation of the rotational axis on a rotating body): Polaris being the North Star for a total of 26,000 years.
The question is how connected those three elements are, in the event someone wants to change the numbers in a worldbuilding process to make either a longer or shorter ice age, like right here, for example:
Does the duration and extent of eccentricity affect those of obliquity and precession?
Or does the duration and extent of obliquity affect those of eccentricity and precession?
Or does the duration
sum beuksI basically orgamsed watching these:
Now, basically, just a little thing.
I have had very little to no art lately, because I am busy with school.
I've noticed, in hindsight of all my writings on the internet spanning some two years (massive, I know), in the way of paleontology and co, that I really haven't done much. I look back to myself as sort of a Dunning-Kruger, when, thanks (ironically) to cretins like Subboor, as well as talking to deviants who are actual paleontologists/ students, I've learned how much knowledge I lack.
I mean, I rarely go to Museums, I've never read a proper book cover-to-cover on paleontology, nor have I had any real world connections to any other paleonerds of any sort, nor of professional paleontologists. I'm just some zealous introverted teenager in his bedroom rambling about what's on his mind when he has the time, and sometimes when he absentmindedly lacks it, closeting his disbelief in a highly religious creationist household. I'm very reluctant
CAWCarcharo34 uploaded a new video. The thumbnail says it all.
In the part about Eurasian cave lions*, the info about the fur from the Wiki article he read out was added by me!!
And the image of the European ice age leopard was most likely from my deviant art sta.sh (found via google images). The illustration is NOT mine, but was included in a paper by Diedrich et al. 2013, and then imported into my sta.sh for use in my journal . Artist is George "Rinaldino" Teichmann.
Should we rename Ursus ingressus?In this recent paper on the European Pleistocene bears that reports that the toe bone from a large Ursid at Stajnia Cave located in the Kraków-Częstochowa Upland in Poland have been both morphologically and genetically tested, and 14C dated.
It turns out, the bear was 20,930 ± 140 years old, far younger than the most recent cave bears known hitherto, making it highly likely that this was merely a brown bear, Ursus arctos.
You may think that since all we had was a phalanx, and a reasonably young one at that, we could assume it was a brown bear, but no. DNA extraction and analysis against 141 cave bear sequences and 490 brown bear ones confirmed the specimen to be a late-surviving Ursus ingressus, or Gamssulzen cave bear. This really pushes forward the extinction date for this species.
This is really cool and
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