Stories about: vertebrate

The Oldest Vertebrates Chinese researchers from the University of Xi'an found in 1999, in Kunming area, Yunan (southern China) vertebrate fossils older than 500 Ma.Myllokunmingia and Haikouichthys had muscles with a "W" shape (myomeres) in transversal section of the body and a cartilaginous skull and spine. The previous oldest vertebr...	16 April 2008 11:03 GMT

A Whole Body Regenerated from One Blood Vessel Vertebrates compass all the animals with backbone, from fishes to mammals and birds. But the first vertebrates originated in more primitive invertebrates. From living species, our closest invertebrate relative is the humble sea squirt, which lives attached to the sea bottom, feeding by filtering just like the clams d...	6 March 2007 05:48 GMT

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The Oldest Vertebrates