... and neither are crustaceans. They're mollusks, and they're delicious when properly cooked (especially mussels, if you ever visit the north of France, Belgium or the Netherlands, you'll miss something if you don't try them).

I find oysters disappointing though, especially for their high price. They're just textureless, wet salty things.

French people also eat snails. With truckloads of garlic, to mask the dirt taste, they're quite nice to eat too.