HIRONO, Iwate Prefecture--Sea urchin are a culinary delicacy, but because their shells are often seen as too difficult or costly to recycle, they end up getting tossed out in bulk. But a local ...

Now we really have something to drink with oysters – like the oyster-shell martini at Saint Peter at the Grand National in ...

according to Mr Milàn - sea urchins move slowly and are normally eaten by predators, so only small shells are left behind.