Crabs are one of the most common creatures in Irish rockpools, easily spotted by their hard shells, sideways walk, and powerful claws. There are different types, like the Shore Crab and Velvet Swimming Crab, but most are scavengers—they clean up the pool by eating dead animals, plants, and leftovers. Crabs also help control populations of other small creatures by eating things like snails and worms. While some can give a small pinch if handled, they’re not dangerous and are an important part of the rockpool ecosystem. Crabs also provide food for birds, fish, and even humans. They’re tough, clever, and help keep the balance in their watery home.