Programmed seasonal brain shrinkage in the common shrew via water loss without cell death

Abstract excerpt

Brain plasticity, the brain's inherent ability to adapt its structure and function, is crucial for responding to environmental challenges but is usually not linked to a significant change in size. A striking exception to this is Dehnel's phenomenon, where seasonal reversible brain-size reduction occurs in some small mammals to decrease metabolic demands during resource-scarce winter months. Despite these...

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