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The Times They Are a-Changin'

Radiolab

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Exploring the Patterns of Coral Shells

Coral shells exhibit unique and intricate patterns characterized by alternating bands of varying shades of gray and tan, similar to growth rings in trees. A closer examination reveals faint lines filling the spaces between these bands. This detail sparks curiosity and historical significance, as Professor John Wells conducted a simple yet telling experiment in 1962, counting these lines. His consistent findings, averaging around 360 to 365, suggest a connection to cyclical natural patterns, potentially linking coral growth to fundamental rhythms of the environment.

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