PATRICK LANDMANN / SCIENCE PHOTO LIBRARY PATRICK LANDMANN / SCIENCE PHOTO LIBRARY
Head of a Nile crocodile (Crocodylus niloticus) that was preserved during the 19th century to show the bone and muscle structure, which can be seen along with the typical sharp teeth. Photographed in the museum of the National Veterinary School of Alfort, Maisons-Alfort, France.
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