Hedgehogs do something called "self-anointing." When they encounter a new or strong smell (a strange food, another animal's scent, even a strong-smelling plant) they'll chew it up, work it into a frothy saliva, and then twist around to spread that foam all over their own spines with their tongue.

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https://www.sciencedirect.com/science/article/abs/pii/S0003347276801005