![]() ![]() Smashers possess a much more developed club and a more rudimentary spear (which is nevertheless quite sharp and still used in fights between their own kind) the club is used to bludgeon and smash their meals apart.Mantis shrimp are commonly separated into many (most fall into spears and smashers but there are some outlyers) distinct groups determined by the type of claws they possess: This club is further divided into three subregions: the impact region, the periodic region, and the striated region. A considerable amount of damage can be inflicted after impact with these robust, hammer-like claws. ![]() The appendage differences divide mantis shrimp into two main types: those that hunt by impaling their prey with spear-like structures and those that smash prey with a powerful blow from a heavily mineralised club-like appendage. The mantis shrimp's second pair of thoracic appendages has been highly adapted for powerful close-range combat. Some spearing species can modify their pre-established habitat if the burrow is made of silt or mud, which can be expanded. ![]() ![]() Stomatopod body size undergoes periodic growth which necessitates finding a new cavity or burrow that will fit the animal's new diameter. Burrows and coral cavities are also used as sites for mating and for keeping their eggs safe. These two habitats are crucial for their ecology since they use burrows as sites for retreat and as locations for consuming their prey. The spearing species build their habitat in soft sediments and the smashing species make burrows in hard substrata or coral cavities. The two different categories of mantis shrimp-spearing and smashing-favour different locations for burrowing. Mantis shrimp live in burrows where they spend the majority of their time. Although some live in temperate seas, most species live in tropical and subtropical waters in the Indian and Pacific Oceans between eastern Africa and Hawaii. Unlike most crustaceans, they sometimes hunt, chase, and kill prey. They rarely exit their homes except to feed and relocate, and can be active during the day, nocturnal, or crepuscular (active at twilight), depending on the species. These aggressive and typically solitary sea creatures spend most of their time hiding in rock formations or burrowing intricate passageways in the sea bed.
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