4min chapter

SciShow Tangents cover image

Growth

SciShow Tangents

CHAPTER

The Importance of Knowing Things

European moles shrink their brains about 11% for winter and then regrow them by about 4% per summer. In experiments, scientists found that presenting soiled bedding from a male mouse to a female mouse stimulated growth of new neurons in her brain. We want to talk just a little bit of brain.

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