Clams and mussels both belong to a group of animals called mollusks and they are both filter feeders, meaning they filter water to extract tiny particles of food to eat.

Both mollusks have two shells that can vary in appearance, but clam shells are typically more rounded and pretty symmetrical, while mussels are usually longer.

Clams are often gray or light brown and white, while mussels are darker. Both inhabit salt and freshwater, with clams primarily found in sediment and mussels on rocks or seabed.

As for the flavor, clams are sweeter, saltier, and have a firm texture, whereas mussels have an earthy or nutty flavor with a tender texture that can become creamy in some dishes.

While the habitat of the mollusk can play a role in how it tastes, you will find differences between the two that are pretty consistent regardless of where they come from.