Clams are filter feeders, which means they feed on tiny organisms like plankton and algae that drift through the water. It's like they're having a never-ending salad bar, with a constant stream of fresh greens coming in! They even have tiny little hairs called cilia that help them capture their food, kind of like how we use our hands to pick up a snack.
But clams aren't just limited to eating tiny plants and animals - they'll also eat bacteria and detritus, which is just a fancy word for "decaying matter". It might not sound appetizing to us, but to a clam, it's like a feast! They're like the vacuum cleaners of the sea, helping to keep the water clean and tidy.