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Hace 2 días · The 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 species from every ocean basin in the world, including the Atlantic, Indian, and Pacific as well as the Arctic and the Southern Ocean, inhabiting intertidal to ...
Hace 1 día · Sadly, crown-of-thorns starfish become a serious problem for coral reefs when there is an “outbreak”—when 15 or more crown-of-thorns starfish are found in one hect a re area, or 10,000 square meters. During an outbreak, crown-of-thorns starfish can strip a reef of nearly 90% of living coral tissue, causing irreparable damage.
Hace 3 días · Starfish, also known as sea stars, possess a unique method of locomotion distinct from most aquatic animals. Unlike fish that propel themselves through water or creatures that walk on the seabed, starfish utilize a crawling motion. This crawling movement is achieved through the use of hundreds of tiny, tube-shaped appendages on the underside of ...
Hace 3 días · A new study by researchers from the University of Sydney provides new insights into the behavior of juvenile crown-of-thorns starfish (COTS), a significant contributor to coral reef devastation in ...
Hace 3 días · En este video, exploramos el Proyecto Starfish Prime, una de las pruebas nucleares más ambiciosas y controvertidas realizadas durante la Guerra Fría. Llevada...
Hace 6 horas · Crown-of-thorns starfish consume coral by extending their stomachs away from their bodies, enveloping the corals with their stomachs and digesting the tissue. These animals can be an important ...
Hace 4 días · Description. Marthasterias glacialis is a starfish of 30 to 40 cm in diameter but it may be up to 80 cm. Its surface is covered by linear papillae from which arise large conical spines surrounded by numerous pedicellariae easily visible under magnifying glass.
