STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Cat's tongue. Coloured scanning electron micrograph (SEM) of the surface of a cat's (family Felidae) tongue. The tongue is covered in many backward facing papillae (projections). These tough structures are used to clean the cat's fur and to rasp meat from its prey.
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