Rodents' Thumbnails: The Secret to Their Global Domination

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Source: Phys.org
Rodents' Thumbnails: The Secret to Their Global Domination
Photo: Phys.org
TL;DR Summary

A study published in Science reveals that most rodents have thumbnails instead of claws, which may have contributed to their evolutionary success by enabling better food manipulation, particularly for handling nuts, and this trait has been conserved across their family tree, helping explain their widespread diversity and dominance.

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