A deep-sea snail, many of Europe's fungi and half the freshwater fish in Japan are just some obscure additions to a list of threatened species. The Red List, a conservation status catalogue of ...

But halfway across the world, there's another type of snail that is just as popular. And it's called ốc, or "sea snails." In the streets of Vietnam, people have been eating them for centuries.

The sea snail with shell measures a little less than ... it is designated as a near-threatened species on the Environment Ministry’s Red List and listed in the Vulnerable (VU) category by ...