Brittle stars hold little commercial value, and are rarely seen by humans, given their inhabiting deeper waters. Nonetheless, as with other taxa, brittle stars not only advance their individual function (reproduction, survival, self-maintenance, development), but also a value for humans and for the ecosystem they inhabit. For humans, they are well-known because of their uniqueness and aesthetic beauty, as well as such behaviors as regenerating arms. Ecologically, they are an important part of benthic food chains, consuming detritus, plankton, worms, and small mollusks and crustaceans, while themselves being prey for bottom feeding fish and crabs. This also impacts human beings as the top of a food chains of which brittle stars are a part.