Brittle Star «Verified | HANDBOOK»

They can voluntarily shed their arms (a process called autotomy ) to escape predators and grow them back later.

They are essential ecosystem engineers, stirring up seafloor sediment and recycling nutrients. brittle star

Some species, like Ophiocoma wendtii , use light-sensitive crystals on their skin to "see" their surroundings without actual eyes. They can voluntarily shed their arms (a process

Class Ophiuroidea (from the Greek "ophis" for snake and "ura" for tail). like Ophiocoma wendtii