The ancestors of modern birds probably had four wings rather than two, according to a study of fossils found in a Chinese museum.
The four-winged early birds had been identified from fossilised remains a number of years ago, but it was unclear whether the creatures were precursors to modern birds or whether they represented an evolutionary cul-de-sac and had simply died out.
By: Philippa Warr, Edited by: Liat Clark
Continue reading...Source: http://www.wired.co.uk/news/archive/2013-03/15/four-winged-birds
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