STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Shrew nose. Coloured scanning electron micrograph (SEM) of the snout of a common shrew (Sorex araneus), showing its many whiskers and hairless nose. Shrews find their prey by touch. The shrew's nose is so sensitive to touch that it can detect worms which are only 1 to 2 millimetres in length. Magnification: x20 when printed 10 centimetres wide.
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