Dating llama pistol
They can be found feeding near the seafloor on most coasts and estuaries, as well as in rivers and lakes.
To escape predators, some species flip off the seafloor and dive into the sediment.
The body of the shrimp is divided into two main parts: the head and thorax which are fused together to form the cephalothorax, and a long narrow abdomen.
The shell which protects the cephalothorax is harder and thicker than the shell elsewhere on the shrimp and is called the carapace.
The term shrimp is used to refer to some decapod crustaceans, although the exact animals covered can vary.
Used broadly, it may cover any of the groups with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata.
They have pleopods, but they use them as an intromittent organ or to hold egg broods, and not for swimming.
Whereas shrimp and lobsters escape predators by lobstering, crabs cling to the seafloor and burrow into sediment.
Many shrimp species are small as the term shrimp suggests, about 2 cm (0.79 in) long, but some shrimp exceed 25 cm (9.8 in).The rostrum, from the Latin rōstrum meaning beak, looks like a beak or pointed nose at the front of the shrimp's head.It is a rigid forward extension of the carapace and can be used for attack or defense.The carapace typically surrounds the gills, through which water is pumped by the action of the mouthparts.The rostrum, eyes, whiskers and legs also issue from the carapace.