The strange creature—which bears a question-mark shape on its body—roved about like a prehistoric Roomba, researchers said.
Paleontologists have revealed the fossilized remains of a curious creature that is not only one of Earth's oldest animals, but may even be the first to have ever been mobile.Dubbed Quaestio simpsonorum, the long-extinct species was discovered in the Australian outback by Florida State University geologist professor Scott Evans and his colleagues.
Among the research team was Ian Hughes, a graduate student in the field of organismic and evolutionary biology at Harvard University.He said in a statement: 'One of the most exciting moments when excavating the bed where we found many Quaestio was when we flipped over a rock, brushed it off, and spotted what was obviously a trace fossil behind a Quaestio specimen.
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