What feature on the tail is explicitly stated as not being a reliable indicator of the snake's age?
Answer
The total number of interlocking keratinous segments
While it is true that a new segment is added to the rattle structure each time the snake sheds its skin, the total count of segments is not considered a reliable indicator of the snake's true age. This is because the segments are fragile and can break off over time through wear or damage. Consequently, an older snake might have fewer segments than expected, while a younger snake that has retained all segments could have a comparatively high number. Young snakes begin life with only a single small segment, known as the 'button,' further emphasizing that segment addition rate does not equate directly to lifespan.
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