A COMPUTER simulation has shown that a long-extinct animal may have been one of the most powerful swimmers of its day.
Yoshiyuki Usami and his team at Kanagawa University in Yokohama, Japan, are creating computer models of extinct beasts that lived over 530 million years ago, and whose fossils were found in the Burgess Shale formation in Canada. The team began by modelling
Usami accepts that
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