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Fin to Limb

24 May 2019

At https://archaeologynewsnetwork.blogspot.com/2019/05/researcher-connects-… … about 400 million years ago vertebrates are said to have begun to crawl out of the sea on to the land. Last week, using a 'cutting edge' mathematical analysis technique an international team are said to have uncovered how a crucial stage in evolution made it possible (see Science Advances May 2019). How did the fins of marine creatures become the limbs of animals on dry land.

At https://archaeologynewsnetwork.blogspot.com/2019/05/one-billion-year-old… … one billion years old fungi have been found – it is said. For a long time the mainstream position has been that fungi (mushrooms, moulds, and yeasts) appeared half a billion years ago. Now, the most recent fossil specimens of fungi remains have been found (which relies on the dating methodology used by the research team). On the evolutionary tree of life fungi are part of an umbella of organisms, the Eukaryotes, like plants and animals. This means that if fungi were present one billion years ago so too must animal life and plants. Fungi are among the most abundant orgianisms on Earth and the third largest contributor to biomass.

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