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See all on WikipediaStarfish - Wikipedia
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. Starfish are also known as asteroids due to being in the class Asteroidea. … See more
Most starfish have five arms that radiate from a central disc, but the number varies with the group. Some species have six or seven arms and others have 10–15 arms. The Antarctic See more
Distribution and habitat
Echinoderms, including starfish, maintain a delicate internal electrolyte balance that is in equilibrium with sea water, making it impossible for them to live in a freshwater habitat. Starfish species inhabit all of the world's oceans. … See moreFossil record
Echinoderms first appeared in the fossil record in the Cambrian. The first known asterozoans were the See more• Lawrence, J. M., ed. (2013). Starfish: Biology and Ecology of the Asteroidea. Johns Hopkins University Press. ISBN 978-1-4214-0787-6.
• Ruppert, … See moreSexual reproduction
Most species of starfish are gonochorous, there being separate male and female individuals. These … See moreIn research
Starfish are deuterostomes, closely related, together with all other echinoderms, to chordates, and are used in reproductive and … See more• Mah, Christopher L. (24 January 2012). "The Echinoblog". A blog about sea stars by a passionate and professional specialist. See more
Wikipedia text under CC-BY-SA license Zeesterren - Wikipedia
Zeesterren (Asteroidea) zijn een groep van ongewervelde dieren die behoren tot de stekelhuidigen. Zeesterren leven op de bodems van alle oceanen; van getijdengebieden tot in de diepzee, maar uitsluitend in zout water. Ze vormen met ongeveer 1900 soorten een van de grootste groepen van stekelhuidigen.
Zeesterren hebben een stervormig lichaam met een centrale schijf en vijf of m…Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 8 mins
The World Asteroidea Database - World Register of Marine Species
WEBThe World Asteroidea Database. The Asteroidea (also known as sea stars or starfish) are among the most diverse and familiar of the living Echinodermata, including over 1800 …
Global Diversity and Phylogeny of the Asteroidea …
WEBApr 27, 2012 · A comprehensive overview of the evolution and classification of starfish or sea stars, a diverse group of marine animals with five to 50 arms. Learn about their fossil history, living families, morphology, …
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Asteroidea (Sea Stars) | Encyclopedia.com
WEBLearn about the diversity, evolution, and ecology of sea stars, a group of echinoderms with star-shaped bodies and flexible arms. Find out how they feed, move, reproduce, …
Sea star | Echinoderm Anatomy & Adaptations | Britannica
WEBMay 3, 2024 · Sea stars, also known as starfish or Asteroidea, are marine invertebrates with rays, or arms, around a central disk. They have tube feet, spines, and …
ADW: Asteroidea: INFORMATION
WEBAsteroids have a complete digestive system. The mouth leads to the cardiac stomach, which is what the sea star everts to digest its prey. The cardiac stomach leads to a pyloric stomach. Digestive glands, or pyloric …
history of deep‑sea sea stars (Asteroidea) - Nature
WEBThis study used mitogenomes to resolve the phylogenetic relationships and evolutionary history of deep-sea and shallow-water sea stars. It revealed the origin, diversification, …
starfish summary | Britannica
WEBLearn about sea star, or starfish, a group of 1,800 echinoderm species with regenerable arms and tube feet. Find out how they move, feed, and reproduce in different ocean …
Starfish (Sea Stars) | National Geographic
WEBSize: 4.7 to 9.4 inches. Weight: Up to 11 pounds. Size relative to a teacup: Marine scientists have undertaken the difficult task of replacing the beloved starfish’s common name with …
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