Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Humans and Neanderthals: less different than polar and brown bears
University of Oxford ^ | June 3, 2020 | press release

Posted on 06/12/2020 11:17:56 PM PDT by SunkenCiv

Ancient humans, Neanderthals and Denisovans were genetically closer than polar bears and brown bears, and so, like the bears, were able to easily produce healthy, fertile hybrids according to a study, led by the University of Oxford's School of Archaeology...

The long history of matings between Neanderthals, humans, and Denisovans has only recently been demonstrated through the analysis of ancient genomes. The ability of mammalian species, including ancient humans, to produce fertile hybrid offspring has been hard to predict, and the relative fertility of the hybrids remains an open question. Some geneticists have even said that Neanderthals and humans were at the 'edge of biological compatibility'.

So the team developed a metric using genetic distances to predict the relative fertility of the first generation of hybrids between any two mammalian species. They did this by analysing genetic sequence data from different species that had previously been shown to produce hybrid offspring. By correlating the genetic distance with the relative fertility of the hybrid offspring, it was possible to show that the greater the evolutionary distance between any two species, the less likely it is that the offspring between them would be fertile. In addition, the team used the distance values to determine a threshold of fertility...

When the distance values between humans, Neanderthals and Denisovans were calculated, they were even smaller than the values between several pairs of species which are known readily and easily to hybridise - including polar bears and brown bears, and coyotes and wolves. This suggests we could have predicted the existence of Neanderthals and Denisovans in our genomes as soon as the first genetic sequences were generated.

(Excerpt) Read more at ox.ac.uk ...


TOPICS: History; Science; Travel
KEYWORDS: denisovans; godsgravesglyphs; helixmakemineadouble; neandertal; neandertals; neanderthal; neanderthals
Credit: Kennis & Kennis Reconstructions

Credit: Kennis & Kennis Reconstructions

1 posted on 06/12/2020 11:17:56 PM PDT by SunkenCiv
[ Post Reply | Private Reply | View Replies]

The rest of the Denisovan/Denisovans keywords, chrono:

2 posted on 06/12/2020 11:18:51 PM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
[ Post Reply | Private Reply | View Replies]

To: StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...

3 posted on 06/12/2020 11:18:55 PM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

I keep wondering if today’s white race will be tomorrow’s neanderthal given the recent orgy of self-loathing on our part.

No group with such low regard of itself can possible survive long.


4 posted on 06/12/2020 11:31:27 PM PDT by aquila48 (Do not let them make you care! Guilting you is how they control you.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv
I believe the "Giants in the Earth" as opposed to the "Sons of God" was God's way of explaining the Neanderthals and what happened to them.

Genesis 6 King James Version (KJV)

6 And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them,

2 That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose.

3 And the Lord said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years.

4 There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.


5 posted on 06/12/2020 11:33:22 PM PDT by higgmeister ( In the Shadow of The Big Chicken)
[ Post Reply | Private Reply | To 3 | View Replies]

To: SunkenCiv
So sorry
6 posted on 06/12/2020 11:37:05 PM PDT by Long Jon No Silver
[ Post Reply | Private Reply | To 1 | View Replies]

To: Long Jon No Silver

Her “Weapon of Mass Destruction” question went unused on Powell and Mueller. A virgin question still to be answered.


7 posted on 06/13/2020 1:21:59 AM PDT by Scram1
[ Post Reply | Private Reply | To 6 | View Replies]

To: SunkenCiv
None of that can explain where this guy came from.


8 posted on 06/13/2020 1:22:06 AM PDT by rfp1234 (Caveat Emperor)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Long Jon No Silver

You need yourself a good flogging.


9 posted on 06/13/2020 5:17:15 AM PDT by PistolPaknMama
[ Post Reply | Private Reply | To 6 | View Replies]

To: SunkenCiv
International Polar Bear Day: DNA Proves Irish Brown Bears Related To Polar Bears
10 posted on 06/13/2020 6:41:42 AM PDT by blam
[ Post Reply | Private Reply | To 1 | View Replies]

To: blam
Polar bears reached Iceland from Greenland during the Little Ice Age.

11 posted on 06/13/2020 6:57:43 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
[ Post Reply | Private Reply | To 10 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson