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A Study Shows that the Sidewalk of Crabs Appeared only Once 200 Million Years Ago

Crabs have fascinated biologists for a long time. The sidewalk of crabs dates back to a unique ancestor, which appeared about 200 million years ago. A Japanese study has just shown this. The sidewalk of crabs was born 200 million years ago. Yuuki Kawabata's team, associate professor at the University of Nagasaki, filmed 50 species of true crabs under controlled conditions. Each animal was observed for 10 minutes. Biologists then classified the s…
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Crabs have fascinated biologists for a long time. The sidewalk of crabs dates back to a unique ancestor, which appeared about 200 million years ago. A Japanese study has just shown this. The sidewalk of crabs was born 200 million years ago. Yuuki Kawabata's team, associate professor at the University of Nagasaki, filmed 50 species of true crabs under controlled conditions. Each animal was observed for 10 minutes. Biologists then classified the s…

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Science-et-vie.com broke the news on Wednesday, May 6, 2026.
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