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"London, Feb 24 (ANI): Fossils of an extinct creature, dubbed the 'walking cactus' - that lived around 500 million years ago, could be arthropods' lost relative, according to a new Chinese study."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.oneindia.com/2011/02/24/walkingcactus-sheds-light-on-the-evolution-of-insectssp-aid0121.html>