Three snake species (IMAGE)

Whitehead Institute for Biomedical Research

Three snake species

Caption

Researchers studied the genes on the sex-specific chromosomes of three species of snakes, including the five-pacer viper (left), the pygmy rattlesnake (center) and the mountain garter snake (right) for clues about the forces that shaped their evolution.

Credit

Western Pygmy Rattlesnake (Sistrurus miliarius streckeri), image by Peter Paplanus from St. Louis, Missouri, Western terrestrial garter snake (Thamnophis elegans terrestris) in San Luis Obispo County, California, by Bill Bouton

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