STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Lower jaw of a python. Coloured scanning electron micrograph (SEM) of the mouth of a python, showing the backward-pointing teeth used for gripping prey. Pythons are not venomous, but kill by constricting their prey, usually birds and mammals, which they swallow whole by unhinging their jaws. They are found in Australia, south- east Asia, India and Africa.
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