科学家追溯螃蟹横向行走的起源:距今2亿年

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科学家追溯螃蟹横向行走的起源:距今2亿年

一项新研究揭示了螃蟹横向行走的演化起源,并将这一独特行为追溯到大约2亿年前的共同祖先。

研究人员通过对比多种螃蟹物种的运动方式,绘制了螃蟹的演化树,发现横向行走可能源于一次进化转变,这为螃蟹躲避天敌提供了优势,有助于其生态成功。

研究还指出,环境变化,如泛大陆的解体和浅海栖息地的扩张,在推动螃蟹的演化中也发挥了重要作用。

该研究强调了行为变化在动物演化中的重要性,并为理解动物运动方式的多样性和持久性提供了新视角。

查看原文开头(英文 · 仅前 3 段)

Scientists have uncovered new clues about how crabs developed their distinctive sideways movement.

A new study, released as a Reviewed Preprint in eLife, brings together the largest dataset yet on how crabs move. By comparing many species, the researchers traced this unusual walking style back to a shared ancestor that lived roughly 200 million years ago. Editors at eLife describe the findings as valuable and supported by largely convincing evidence, with broad relevance for scientists studying how animals move.

Why Sideways Movement Matters

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