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A New Theory Emerges for Where Some Fish Became 4-limbed Creatures

Published: December 28, 2011.
By University of Oregon

A small fish crawling on stumpy limbs from a shrinking desert pond is an icon of can-do spirit, emblematic of a leading theory for the evolutionary transition between fish and amphibians. This theorized image of such a drastic adaptation to changing environmental conditions, however, may, itself, be evolving into a new picture.

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Fossils, Retallack, Soils, Life, Land, Shale, Cambrian, Ago, Ediacaran, Fossil, Burgess, Million, Geological, Organisms, Complex, Billion, History, Arachnids, Eukaryotes, Years, Heritage, Canada, Early, Prokaryotes, Embryos, Schiffbauer, Diskagma, Trackways, Period, Floodplains, Fish, Metaspriggina, Garwood, Earth, Oligocene, Arches, Specimens, Living, Oxygen, Multicellular, Evidence, Animals, Primate, Rocks, Rukwa, …

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