A cat's sandpapery tongue is actually a magical detangling hairbrush - The Washington Post
Why Does My Cat Do That? Odd Cat Behaviors - PetHelpful
Sandpaper Tongue: Why Cat's Tongue is Rough - The Tiniest Tiger
Why cats are so good at grooming: Scientists discover their tongues are covered in claw-like hooks
Excessive grooming in cats – Cat in the Box LLC
3D-printed cat tongues have hooks like a hairbrush
Cats and Teeth: What's Really Going on Inside Their Mouth?
The scoop on how your cat's sandpapery tongue deep cleans
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