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There were some pretty strange creatures hanging out in ancient oceans around the Cambrian explosion, but this worm with legs is the creepiest. Paleontologist Simon Conway Morris, who discovered the unnerving creature’s fossils in the Canadian section of the Rocky Mountains in 1977, was so confounded by its unlikely shape he named the species Hallucigenia. Until now, scientists were […]

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Scientists studying how connections in our brains foster senses have “hacked” into the brains of nematode worms by altering their DNA. In doing so, they were able to change the worms’ responses to salt and smell with new synaptic connections. Schafer’s team injected DNA that codes for their protein into the gonads ofCaenorhabditis elegans nematode worms. […]

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