Who would've thought an ancient worm would fill in an important blank in evolution? Tracks from a worm-like creature were preserved in fossils nearly 550 million years old. Researchers said the fossils indicate the earliest evidence of animals making decisions and moving on their own, according to a study published in Nature. The team of…
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A 550-million-year-old worm was one of the first animals to move and make decisions, a new study says
