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The genus Linckia, as is true of other species of starfish, is recognized by scientists as being possessed of remarkable regenerative capabilities, and endowed with powers of defensive autotomy against predators: [citation needed] Although not yet documented, L. laevigata may be able to reproduce asexually, as does the related species Linckia ...
Hydrothermal vent adaptations like the use of bacteria housed in body flesh or in special organs, to the point they no longer have mouth parts, have been found in unrelated hydrothermal vent species of mollusks and tube worms (like the giant tube worm). [198] Lichens are partnerships of fungi and algae. Each "species" of lichen is make of ...
Echinoderms have secondary radial symmetry in portions of their body at some stage of life, most likely an adaptation to a sessile or slow-moving existence. [15] Many crinoids and some seastars are symmetrical in multiples of the basic five; starfish such as Labidiaster annulatus possess up to fifty arms, while the sea-lily Comaster schlegelii ...
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (/ ˌ æ s t ə ˈ r ɔɪ d i ə /). Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class
Culcita novaeguineae (common name, cushion star) is a species of starfish. It has short arms and an inflated appearance and resembles a pentagonal pincushion . It is variable in colour and can be found in tropical warm waters in the Indo-Pacific .
Starfish of this invasive species are extremely difficult to eradicate because of their ability to regrow when half or more of the original starfish is intact. [9] Thus, initial population control efforts championed by fishermen and conservationists in the 1960s, which involved sectioning and releasing caught starfish, may have unknowingly ...
Aboral surface of an Asterias forbesi sea star showing ring of pedicellariae surrounding spine. Asterias, like most starfish genera in the order Forcipulatida, are recognisable externally by their pedicellariae, many thousands of tiny jaw-like structures on the skin which can snap shut to nip at prey or predators.
P. lincki is active in both daytime and nighttime. [11] It is a popular aquarium specimen, but is considered incompatible with many other invertebrates, as it will eat soft corals, sponges, tube worms, clams, other starfish, and the like.