Schools of Earth Sciences and Biological Sciences, University of Bristol, Life Sciences Building, 24 Tyndall Avenue, Bristol BS8 1TQ, UK. Electronic address: Jakob.Vinther,@,bristol.ac.uk.
Curr Biol. 2022 Aug 8;32(15):R833-R836. doi: 10.1016/j.cub.2022.06.091.
The arthropod brain comprises three segments and innervates three appendages. How it evolved has been a matter of intense debate. New Burgess Shale fossils preserving nervous tissue bring us closer to solving this mystery but evaluating the many hypotheses they could fit is not easy.
节肢动物的大脑由三个节段组成，并支配三个附肢。它是如何进化的一直是激烈争论的问题。新伯吉斯页岩化石保存的神经组织使我们更接近于解决这个谜团，但评估它们可能适合的许多假设并不容易。
