A lions tongue has numerous tiny spines called papillae Pet lovers with a domestic cat at home will relate to this story quite well, as they would have had their hands or fingers licked by their cat's tongue at some point or another. A lion’s tongue is no less different in design to that of a house cats, with the exception that its sheer size and heaviness would make a lions tongue as rough and harsh as sandpaper! But why is the lions tongue so rough and how is this beneficial? The reason for its roughness is that the surface of the lions tongue is covered in many tiny spines called papillae, which are further divided into 3 types namely; Filiform, Fungiform and Vallate papillae. The cats filiform papillae which is located on the tongues dorsal surface, is the main reason for the roughness, and these can also be compared to barbs since they face backwards in the direction of the throat. Having a barbed tongue is beneficial to the lion for a number of reasons. I...
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