First Ever Animal Whose DNA Hasn't Changed in 105 Million Years
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Hello and welcome! My name is Anton and in this video, we will talk about a discovery of an actual living fossil based on DNA analysis
Links:
https://doi.org/10.1093/evolut/qpae028
https://twitter.com/ChaseBrownstein/status/1764690429159547133
Crabs! https://youtu.be/tWq3IrO9K3U
#biology #livingfossil #garfish
0:00 Living fossils in a nutshell
2:25 First ever living fossil 100 million years old
3:30 Famous examples of hybrids and speciation
5:20 New study and what was discovered
6:20 100 million year old hybrids
7:15 Strangeness of gar fish
7:50 How this probably works and why it's important
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Images/Videos:
James St. John CC BY 4.0 https://www.flickr.com/photos/jsjgeology/34131742582
Bernard DUPONT CC BY 2.0 https://www.flickr.com/photos/berniedup/10901985983
Solomon David
Shubham Chatterjee CC BY-SA 3.0 https://en.wikipedia.org/wiki/Horseshoe_crab#/media/File:Tachypleus_gigas.JPG
Russell D. C. Bicknell and Stephen Pates CC BY 4.0 - https://www.frontiersin.org/articles/10.3389/feart.2020.00098/full
James Field CC BY-SA 3.0 https://en.wikipedia.org/wiki/Living_fossil#/media/File:Ginkgo_Biloba_Leaves_-_Black_Background.jpg
Succu CC BY-SA 3.0 https://en.wikipedia.org/wiki/Living_fossil#/media/File:Gingkoites_huttoni_1.jpg
Daderot CC0 https://en.wikipedia.org/wiki/Coelacanth#/media/File:Axelrodichthys_araripensis_-_Naturmuseum_Senckenberg_-_DSC02202.JPG
Bruce A.S. Henderson - Fraser, Michael D.; Henderson, Bruce A.S.; Carstens, Pieter B.; Fraser, Alan D.; Henderson CC BY 4.0 https://en.wikipedia.org/wiki/Coelacanth#/media/File:Coelacanth_off_Pumula_on_the_KwaZulu-Natal_South_Coast,_South_Africa,_on_22_November_2019.png
Ghedoghedo CC BY-SA 3.0 https://en.wikipedia.org/wiki/Coelacanth#/media/File:Coelacanthus_granulatus.JPG
Greg Hume CC BY-SA 3.0 https://en.wikipedia.org/wiki/Alligator_gar#/media/File:Alligator_Gar_10.JPG
Ed T CC BY-SA 2.0 https://en.wikipedia.org/wiki/Gar#/media/File:HMNS_gar.jpg
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