Sand fleas are one of the most dangerous species of fleas commonly found in the North Pacific region. They are the parasitic crustaceans who attach themselves to the flesh and scale of the other water creatures, and then eat the creatures they are attached to. Various water creatures who are the common targets of these sand fleas are small fish, swordfish, sunfish, flying fish, starfish, and even whales.
The size of the sand fleas can vary in size from as small as a small grain of sand to three or four times larger. Their attack is localized, as one part of the host can be seen to be severely affected by these fleas, while other parts show no damage.
As a first step of their predation on the host