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The rattle is composed of a series of nested, hollow beads which are actually modified scales from the tail tip. Each time the snake sheds its skin, a new rattle segment is added. Newborn rattlesnakes do not have a rattle, they gain one after the first time they shed their skin. Adult snakes may lose their rattles on occasion, but more appear at each molting. If the rattle absorbs enough water in wet weather, it will not make noise.

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15y ago
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8y ago

No, they add a segment to their rattle each time they shed their skin. They may do so several times in a year, especially the young and rapidly growing snakes.

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Q: Does a rattlesnake add a rattle each year?
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What does a rattlesnake add to its each time it sheds its skin?

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Yes they do, but the rattle is not as developed as in adults. It's only a couple of segments, but it's still there. The rattle grows bigger every year by one 'segment' every time they shed their skin.


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The majority of predators are scared off by the rattle - it's not a 'natural' sound and most animals will flee from something they're unfamiliar with. Add to that - a highly-potent venomous bite - and the rattlesnake will survive most predators.


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