China news agency, Toronto, March 6 (Reuters) see specimens of tiny worms in the ocean of life 500 million years ago, people would never think of this is one of the biological ancestors Shared with their genes.
but, according to a century ago in the Canadian Rocky Mountains a fossil analysis of excavation, the size of a finger, called Pikaia gracilens is including the oldest chordate family member of the human race.
British science magazine biological review of the latest published the study determined that one root notochord Pikaia, concurrent nerve bundle, cardiovascular system and existing a large number of sarcomere evidence.
the study is one of the discoverers, associate professor of ecology and evolutionary biology at the university of Toronto, said Karen is Pikaia & other; A distant cousin of the human & throughout; .
Karen said, let us with Pikaia gracilens share the same genes and some basic characteristics.
however, Karen said carefully, humans evolved from the 5 cm long creature and may only be speculation that so far.
the study, says, a professor at the university of Cambridge les, head of the discovery of the sarcomere can apparently Pikaia as the planet’s most primitive chordate, Pikaia may creep on the sea floor.
this 6 issue of the sing tao daily quoted Canadian press information, says the piece about Pikaia gracilens fossils in western Canada, in 1911 the burgess shale fossil bed found about Dutch national park.