STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Python tongue. Coloured scanning electron micrograph (SEM) of a python's forked tongue. The tongue is used to detect prey by picking up scent particles from the air. The particles dissolve into, or are trapped in, the moisture on the tongue and then transferred to the Jacobson's organ, located in pits in the roof of the mouth, for analysis.
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