Suomalainen fyysikko Matti Pitkänen aiheesta

teepee~, 6/5/2018 12:27:57 PM, 397723

Lainaus: Teppolainen, 05.06.2018 11:43:51, 397722
I encountered an interesting popular article telling about findings challenging Darwin's evolutionary theory. The original article of Stoeckle and Thaler is here.
The conclusion of the article is that almost all animals, 9 out of 10 animal species on Earth today, including humans, would have emerged about 100,000 200,000 years ago. According to Wikipedia all animals are assumed to have emerged about 650 million years ago from a common ancestor. Cambrian explosion began around 542 million years ago. According to Wikipedia Homo Sapiens would have emerged 300,000-800,000 years ago.
On basis of Darwin's theory based on survival of the fittest and adaptation to a new environment, one would expect that the species such as ants and humas with large populations distributed around the globe become genetically more diverse over time than the species living in the same environment. The study of so called neutral mutations not relevant for survival and assumed to occur with some constant rate however finds that this is not the case. The study of so called mitochondrial DNA barcodes across 100,000 species showed that the variation of neutral mutations became very small about 100,000-200,00 years ago. One could say that the evolution differentiating between them began (or effectively began) after this time. As if mitochondrial clocks for these species would have been reset to zero at that time as the article states it This is taken as a support for the conclusion that all animals emerged about the same time as humans.
The proposal of (at least ) the writer of popular article is that the life was almost wiped out by a great catastrophe and extraterrestrials could have helped to start the new beginning. This brings in mind Noah's Ark scenario. But can one argue that humans and the other animals emerged at that time: were they only survivers from a catastrophe. One can also argue that the rate of mitochondrial mutations increased drmatically for some reason at that time.
Could one think that great evolutionary leap initiating the differentiation of mitochondrial genomes at that time and that before it the differentiation was very slow for some reason? Why this change would have occurred simultaneously in almost all animals? Something should have happened to the mitochondria and what kind of external evolutionary pressure could have caused it?
https://matpitka.blogspot.com/2018/06/did-animals-emerges-only-100000-200000.html


Jos luit linkin, siinä on erinäisiä vaihtoehtoja eläinten sukupuuttoon kuolemisesta, joidenkin lajien selviytymisestä ja mutaatioista esim. edellisten jääkausien jälkeen.

Miksi -kysymys liittyy siis mihin? Ettei ole ollut pahemmin elämää 200 tuhatta vuotta sitten? Että kaikki isommat eläimet ovat tulleet vasta sen jälkeen? Mitens dinosaurukset? Vai onko kysymys jostain aikavälistä ettei elämää ollut maapallolla juuri silloin?

Luen sen vielä itse uudestaan ajan kanssa.

Muokannut: teepee~, 6/5/2018 12:31:48 PM


Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397720 , Teppolainen , 05.06.2018 10:05:18 ]
    Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397721 , teepee~ , 05.06.2018 10:55:12 ]
        Suomalainen fyysikko Matti Pitkänen aiheesta   [ 397722 , Teppolainen , 05.06.2018 11:43:51 ]
            Suomalainen fyysikko Matti Pitkänen aiheesta   [ 397723 , teepee~ , 05.06.2018 12:27:57 ]
    Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397755 , PeP , 07.06.2018 10:20:21 ]
        Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397757 , Diletant , 07.06.2018 11:37:19 ]
            Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397758 , PeP , 07.06.2018 13:00:39 ]
                Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397759 , Diletant , 07.06.2018 13:14:59 ]
                    Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397769 , PeP , 07.06.2018 14:34:21 ]
                        Kyvykkyydestä   [ 397771 , Diletant , 07.06.2018 14:44:55 ]
        Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397760 , Teppolainen , 07.06.2018 13:49:16 ]
            Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397762 , teepee~ , 07.06.2018 13:57:14 ]
            Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397763 , teepee~ , 07.06.2018 13:59:58 ]
            Lajien synty noin 90 prosenttisesti 100-200.000 vuotta sitten. Uusi tutkimus haastaa darwinistisen evoluutioteorian   [ 397765 , PeP , 07.06.2018 14:02:05 ]
            sattuipa hassusti   [ 397772 , mmm , 07.06.2018 15:08:28 ]
    Why should mitochondria define species?   [ 397776 , Otto Mäkelä , 08.06.2018 07:37:31 ]
    Potaskaa   [ 397783 , Lassi Hippeläinen , 08.06.2018 17:59:15 ]
        Potaskaa   [ 397788 , PeP , 08.06.2018 21:08:29 ]