Molluscs: let’s face it they’re delicious. If there wasn’t a local folk tradition in Anhui that eating a gravid snail is an auspicious event it would be necessary to invent one. Uh, such tradition that is.
Which reminds me: UCMP scholar Jan Vendetti has a blog about food in Japan, and studying snails in Japan, though not necessarily about studying gravid food snails in Japan.
Also, Os Mutantes are hawking Happy Meals, forty years later !?!? WTF!!!