Chocolate makes snails smarter

Chocolate isn't usually on the diet for snails, but when Lee Fruson and Ken Lukowiak from the University of Calgary, became curious about the effects of diet on memory, they decided to try a flavonoid from chocolate, epicatechin (epi) on the pond snail Lymnaea stagnalis to see if it improved the animals' memories. After a dose of epi, the pond snails were able to remember a training protocol for longer and the memories were stronger.

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