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- Starfish abstract "Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea. Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as "brittle stars" or "basket stars". About 1,500 species of starfish occur on the seabed in all the world's oceans, from the tropics to frigid polar waters. They are found from the intertidal zone down to abyssal depths, 6,000 m (20,000 ft) below the surface.Starfish are marine invertebrates. They typically have a central disc and five arms, though some species have more than this. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Many species are brightly coloured in various shades of red or orange, while others are blue, grey or brown. Starfish have tube feet operated by a hydraulic system and a mouth at the centre of the oral or lower surface. They are opportunistic feeders and are mostly predators on benthic invertebrates. Several species have specialized feeding behaviours including eversion of their stomachs and suspension feeding. They have complex life cycles and can reproduce both sexually and asexually. Most can regenerate damaged parts or lost arms and they can shed arms as a means of defence. The Asteroidea occupy several significant ecological roles. Starfish, such as the ochre sea star (Pisaster ochraceus) and the reef sea star (Stichaster australis), have become widely known as examples of the keystone species concept in ecology. The tropical crown-of-thorns starfish (Acanthaster planci) is a voracious predator of coral throughout the Indo-Pacific region, and the northern Pacific sea star is considered to be one of the world's 100 worst invasive species.The fossil record for starfish is ancient, dating back to the Ordovician around 450 million years ago, but it is rather poor, as starfish tend to disintegrate after death. Only the ossicles and spines of the animal are likely to be preserved, making remains hard to locate. With their appealing symmetrical shape, starfish have played a part in literature, legend, design and popular culture. They are sometimes collected as curios, used in design or as logos, and in some cultures, despite possible toxicity, they are eaten.".
- Starfish kingdom Animal.
- Starfish phylum Asterozoa.
- Starfish phylum Echinoderm.
- Starfish thumbnail Starfish,_Mauritius.jpg?width=300.
- Starfish wikiPageID "228613".
- Starfish wikiPageRevisionID "606375597".
- Starfish classis "Asteroidea".
- Starfish classisAuthority "De Blainville, 1830".
- Starfish hasPhotoCollection Starfish.
- Starfish imageWidth "250".
- Starfish name "Starfish".
- Starfish phylum Echinoderm.
- Starfish regnum "Animalia".
- Starfish subdivision Brisingida.
- Starfish subdivision "Forcipulatida".
- Starfish subdivision "Notomyotida".
- Starfish subdivision "Paxillosida".
- Starfish subdivision "Spinulosida".
- Starfish subdivision "Valvatida".
- Starfish subdivision "Velatida".
- Starfish subdivision "† Calliasterellidae".
- Starfish subdivision "† Trichasteropsida".
- Starfish subdivisionRanks Order_(biology).
- Starfish subphylum Asterozoa.
- Starfish subject Category:Asteroidea.
- Starfish subject Category:Echinoderms.
- Starfish subject Category:Paleontology.
- Starfish type Animal.
- Starfish type Eukaryote.
- Starfish type Species.
- Starfish type Animal.
- Starfish type BiologicalLivingObject.
- Starfish type EukaryoticCell.
- Starfish type Organism.
- Starfish comment "Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea. Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as "brittle stars" or "basket stars". About 1,500 species of starfish occur on the seabed in all the world's oceans, from the tropics to frigid polar waters. They are found from the intertidal zone down to abyssal depths, 6,000 m (20,000 ft) below the surface.Starfish are marine invertebrates.".
- Starfish label "Asteroidea".
- Starfish label "Asteroidea".
- Starfish label "Estrela-do-mar".
- Starfish label "Rozgwiazdy".
- Starfish label "Seesterne".
- Starfish label "Starfish".
- Starfish label "Zeesterren".
- Starfish label "Étoile de mer".
- Starfish label "Морские звёзды".
- Starfish label "نجم البحر".
- Starfish label "ヒトデ".
- Starfish label "海星".
- Starfish sameAs Hvězdice.
- Starfish sameAs Seesterne.
- Starfish sameAs Αστερίας.
- Starfish sameAs Asteroidea.
- Starfish sameAs Itsas_izar.
- Starfish sameAs Étoile_de_mer.
- Starfish sameAs Bintang_laut.
- Starfish sameAs Asteroidea.
- Starfish sameAs ヒトデ.
- Starfish sameAs 불가사리류.
- Starfish sameAs Zeesterren.
- Starfish sameAs Rozgwiazdy.
- Starfish sameAs Estrela-do-mar.
- Starfish sameAs m.01h8tj.
- Starfish sameAs Q25349.
- Starfish sameAs Q25349.
- Starfish wasDerivedFrom Starfish?oldid=606375597.
- Starfish depiction Starfish,_Mauritius.jpg.
- Starfish depiction Common_starfish.
- Starfish isPrimaryTopicOf Starfish.
- Starfish name "Starfish".