fun facts: seahorses are named seahorses because their head looks like a horses head. silverfish are named silverfish because of their appearance and how they move like fish. jellyfish got their name from people several many years ago since those people thought they looked like jelly, and they probably didn’t know what was a fish and what wasn’t (also they’re literally made out of something similar to jelly). starfish are named starfish since they look like stars, also, they’re actually called sea stars, but you chose to say starfish. to the people who ask obvious questions and are too lazy to look them up, you’re welcome