@hecht010: 🦠 This animal looked so strange that scientists first reconstructed it completely wrong. Hallucigenia lived about 508 million years ago during the Cambrian period. It walked on soft stubby legs, while long defensive spines protected its back. Decades later researchers realized: The original reconstruction had been upside down. Today Hallucigenia is known as an early relative of modern velvet worms and part of the famous Cambrian explosion, when complex animal life rapidly diversified. #hallucigenia #cambrian #ancientlife #paleontology #prehistoricanimals