Why do wet dogs shake themselves dry? Neuroscience has an answer
Briefly

The touch system is so complex and rich that [it] can distinguish a water droplet from a crawling insect from the gentle touch of a loved one.
A team led by Dawei Zhang focused on a type of ultra-sensitive touch detecting receptors called C-fibre low-threshold mechanoreceptors (C-LTMRs), which wrap around hair follicles.
Read at Nature
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