How sharp are cheetah tongues?

I happened to see this interesting video recommended, so I decided to share it here. If you guys like it, you can use the youtube link to watch the full video.
https://www.youtube.com/watch?v=vlE8jED-x3k

Their tongues appear to be like sandpaper but with tiny blades attached so that they can lick bone clean when eating.

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Thanks for watching