Shrimps are ten-legged crustaceans - therefore defined as decapods - widespread in both marine and freshwater environments, and their color is generally tending towards bright orange and red. Among the most interesting characteristics of shrimps, there is certainly that of the very articulated tail, which allows them to move backwards. In addition to this, the famous antennas with which they are equipped are certainly also noteworthy, which are capable of perceiving the vibrations caused by the movement of other animals in the water. Finally, crayfish are famous for being active during the night hours and for being able to reproduce approximately three times a year.