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Showing results for tags 'Fish evolution'.
Found 3 results
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Fossil Record of Fish Morphology altered by Single Pattern Formation Gene
Biotalker posted a topic in General Fossil Discussion
Here is a fine way to spend 16 minutes. A wonderful (even if simplified) story of a gene at the top of the hierarchy of limb formation in tetrapods, and the identification of a mutation in the gene that causes a dramatic change in fish's morphology. It is remarkable that the mutation doesn't affect the protein sequence but the switch that turns it on or off in different tissues of the developing animal. Why would this be of particular interest to you? Because shown herein is the remarkable correlation with the fossil record of this small fish. So grab some popcorn, or better yet a beer or glass of wine and enjoy yet another page of how scientific research illuminates.- 1 reply
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- fish evolution
- hhmi.org
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Ancient fish fossils reveal origin of the vertebrate skeleton
Oxytropidoceras posted a topic in Fossil News
Ancient fish fossils reveal origin of the vertebrate skeleton By Brooks Hays, UPI, July 31, 2018 https://www.upi.com/Science_News/2018/07/31/Ancient-fish-fossils-reveal-origin-of-the-vertebrate-skeleton/3921533066983/ "These findings change our view on the evolution of the skeleton," said researcher Phil Donoghue. Joseph N. Keating, Chloe L. Marquart, Federica Marone, and Philip C. J. Donoghue. (2018) The nature of aspidin and the evolutionary origin of bone. Nature Ecology & Evolution. https://www.nature.com/articles/s41559-018-0624-1 Yours, Paul H.-
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- aspidin
- bone-like tissue
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Not sure if people caught this show on the BBC but watched it this week and it was very good. BBC Beautiful Minds Season 2 Part 1. The whole 1 hour episode was about paleontologist Jenny Clack and her discoveries about fish evolution and their transision to land. Basically she looked at things outside the box and therefore saw things that others had missed because she did not have some of the preconceived biases of some of the more old school paleontologists. Very well done and watchable show. For those of us that do not live in the UK there seem to be a number of torrents that you can find to download it. And besides how many female paleontologists do you know that drive a motorcycle.....
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