I am allergic to shellfish which are oddly not even a type of fish.
they aren't. Then what the heck are they?
Many types of shellfish are actually crustaceans which are closer to insects. There are other types as well.
Insects you say? oh my. I wonder if a bug tastes as good as a lobster.
They might taste similar since they are closely related, common ones that are eaten are shrimp, lobsters, crabs and crayfish. Crayfish remind me of insects a lot.