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The Oldest Known Right-Handed Animal May Have Lived 550 Million Years Ago
New research suggests that the ancient animal Spriggina floundersi tended to bend to the right, making it the oldest known example of lateralized behavior. More than 550 million years ago, a small, flattened animal moved across the seafloor and repeatedly favored one direction. Fossils of Spriggina floundersi suggest that when it bent its body, it [...]
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