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Underside of a sunflower sea star. Sunflower sea stars can reach an arm span of 1 m (3.3 ft). They are the heaviest known sea star, weighing about 5 kg. [4] They are the second-biggest sea star in the world, second only to the little known deep water Midgardia xandaros, whose arm span is 134 cm (53 in) and whose body is 2.6 cm (roughly 1 inch) wide. [7]
More than a decade ago, a “mysterious illness” hit the sunflower sea star population. The disease, known as sea star wasting syndrome, decimated 95% of the creature’s population in 2013, ...
The sea stars are considered “functionally extinct” in California and Oregon. Rare sunflower sea stars spawn at California aquarium. See the ‘pizza-size’ creatures
A baby sunflower sea star at the Aquarium of the Pacific's behind-the-scenes lab. (Allen J. Schaben / Los Angeles Times) To that end, ...
This group includes the cushion stars, [113] the leather star [114] and the sea daisies. [115] Velatida (4 families, 16 genera, 138 species) [116] This order of starfish consists mostly of deep-sea and other cold-water starfish often with a global distribution. The shape is pentagonal or star-shaped with five to fifteen arms.
Solaster dawsoni attacking a spiny red sea star, Hippasteria spinosa An adult specimen of Solaster dawsoni afflicted by the Sea star wasting disease off Vancouver. The morning sun star is a predator, feeding mostly on other starfish. It is feared by other stars which move away as fast as they can if touched by a morning sun star.
A non-selective and opportunistic predator, Urticina crassicornis, may feed on crabs, sea urchins, mussels, gastropods, chitons, barnacles, fish, and sometimes sea stars and stranded jellies. A peculiar prey, the sun star, Pycnopodia helianthoides commonly known as the "Sunflower Star", is found in Washington state and has a size much greater ...
Community members are helping scientists monitor the struggling ochre sea star population, one colorful echinoderm at a time. Skip to main content. News. Need help? Call us! 800-290-4726. Login ...