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Ever Wonder Why A Cat's Tongue Is So Rough?

posted in Other on 2/8/2014
A cat's tongue is covered in backwards facing spines, about 500 microns long. These are called papillae and contain keratin (the same stuff your nails and hair is made of) making them quite rigid. They are used for grooming and act almost like a hairbrush.
A cat's tongue is covered in backwards facing spines, about 500 microns long. These are called papillae and contain keratin (the same stuff your nails and hair is made of) making them quite rigid. They are used for grooming and act almost like a hairbrush.

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