New evidence suggests earliest trilobites were able to partially roll up their bodies

(Phys.org) —A trio of researchers—two from Cambridge University and one from the Chinese Academy of Sciences, has found evidence that suggests that the earliest trilobites were able to roll up their bodies for protection, much as their later ancestors did. In their paper published in the journal Biology Letters, the team describes their examination of a fossil found in Alberta Canada, and how they ruled out other causes for its rolled up position.

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