Odd News Roundup: Clam makes comeback from extinction off shores of Croatia

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Clam makes comeback from extinction off shores of Croatia

A huge clam that was on the verge of extinction has made a comeback, with a surge in numbers in waters off Croatia, marine biologists say. The clam, known as the noble pen shell or pinna nobilis, started dying out as a deadly pathogen spread in parts of the Mediterranean around 2016.