Hello, I'm an expert in marine biology. When it comes to sea stars, also known as starfish, they do have a unique feeding mechanism that involves structures that can be likened to teeth, but they are not actual teeth like those found in mammals.

Sea stars have a specialized structure called the stomach, which they can eject out of their mouth to digest food externally. They also have a set of pedicellariae, which are tiny, tooth-like appendages that help to crush and clean their prey. These pedicellariae are not teeth in the traditional sense, but they serve a similar function in terms of processing food.

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But SOME starfish DO have teeth! Since most starfish feed using their stomachs, there's no real need for them to bite and chew the same way that say, a dog might. BUT there are some starfish that have a lot of spines located around their mouth that might be important to helping them eat.read more >>