525-Million-Year-Old Fossil Defies Textbook Explanation for Brain Evolution
Summary: The fossil of a 525-million-year-old tiny sea creature with a preserved nervous system could clear up a century-long debate ...
Tag: 525millionyearold
525-million-year-old fossil defies textbook e
picture:Â Artist's impression of a person 525-million-year-old Cardiodictyon catenulum on the shallow coastal sea flooring, rising from the shelter of a ...