Lunar eclipse, Christopher Columbus and the Teredo worm. A convergence of astronomy, history and biology
By poseidonsciences, on December 26th, 2010

Shipworms have been a bane to ancient mariners until the advent of copper clad ships by the 18th century and modern marine coating on steel hulls. These boring clams weakened the wooden hulls of ships to the point that they break apart in the open sea without any warning.

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