How are large claws helpful for a crustacean?

Large claws in crustaceans serve multiple purposes, primarily for defense against predators and for capturing prey. They enable crustaceans to fend off threats effectively and assert dominance in their habitat. Additionally, these claws can be used in mating displays and competition for mates, enhancing reproductive success. Overall, large claws are crucial for survival and reproductive strategies in the complex ecosystems where crustaceans reside.