A 500-million-year-old sea creature called Mollisonia shared a similar brain structure to modern spiders, suggesting that arachnids first evolved in the sea
Več na: https://www.newscientist.com/article/2489181-ancient-animals-fossilised-brain-prompts-rethink-of-spider-evolution/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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