Talitrus_saltator
Talitrus saltator
Species of crustacean
Talitrus saltator, a species of sand hopper, is a common amphipod crustacean of sandy coasts around Europe. The animal's typical "hopping" movement gives it its common name, and is produced by a flexion of the abdomen.[3] In order to do this, it must stand on its legs (amphipods usually rest on their sides) and suddenly extend its abdomen from under its body.[4] It can thus leap several inches into the air,[5] although without any control over its direction.[4] A great deal of scientific research has been carried out on the animal, to determine the environmental cues which it uses to control its behavior.[4]