London, United Kingdom
Rattlesnake Rattle, Sem
Photograph - Photograph
Rattlesnake rattle, coloured scanning electron micrograph (SEM). The rattle, which is found at the end of a rattlesnake's tail, is composed of hollow, horny, loosely-connected segments. A new segment is added at each molt. Segments may also break off. When alarmed the snake vibrates the rattle, producing a buzzing sound that warns off predators.
May 8th, 2013
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