Scientists had previously observed that some species of shrews undergo a form of biological plasticity in which their bodies, skulls, brains and some organs shrink in the winter, then regrow in the spring. Now, a new study in Japan, published in the Proceedings of the Royal Society B: Biological...

Source: [Phys.org](https://phys.org/news/2026-08-shrews-reversible-size-skulls-noses.html)

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