How does bilateral symmetry help a crab?

Bilateral symmetry in crabs allows for a more streamlined body shape, which enhances their ability to move efficiently through their aquatic environment. This symmetry aids in balanced movement and coordination, enabling crabs to navigate complex habitats, escape predators, and hunt for food effectively. Additionally, having symmetrical body structures helps in the development of sensory organs, facilitating better perception of their surroundings. Overall, bilateral symmetry plays a crucial role in the crab's survival and adaptability.