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Pisaster giganteus, the giant sea star, giant spined star, or knobby sea star is a species of sea star that lives along the western coast of North America from Southern California to British Columbia. It makes its home on rocky shores near the low tide mark. It preys on mollusks. It can grow as large as 24 in (61 cm) in diameter.
Pisaster brevispinus, commonly called the pink sea star, giant pink sea star, or short-spined sea star, is a species of sea star in the northeast Pacific Ocean. It was first described to science by William Stimson in 1857. [1] The type specimen was collected on a sandy bottom, 10 fathoms (18 m) deep, near the mouth of San Francisco Bay.
Ochre sea star at low tide, Saltspring Island, British Columbia. Pisaster (from Greek πίσος, "pea", and ἀστήρ, "star" [1]) is a genus of Pacific sea stars that includes three species, P. brevispinus, P. giganteus, and P. ochraceus. Their range extends along the Pacific coast from Alaska to southern California in the intertidal zone.
These are granular, and the two that are closest to the disc each bear a conical spine, although this is often worn away. Other marginal plates and the plates on the oral (lower) surface bear many fine blunt spinules. The tube feet are pointed and have no suckers. Astropecten duplicatus grows to about 20 cm (8 in) in diameter. The aboral ...
Pisaster ochraceus, generally known as the purple sea star, ochre sea star, or ochre starfish, is a common seastar found among the waters of the Pacific Ocean. Identified as a keystone species , P. ochraceus is considered an important indicator for the health of the intertidal zone .
A group of divers encountered a rare giant oarfish off the coast of Taiwan. The viral video, originally published by diving instructor Wang Cheng-Ru in June, shows the group coming upon the deep ...
The head of Bathynomus vaderi, a deep-sea crustacean found off the coast of Vietnam, resembles the helmet of "Star Wars" villain Darth Vader, according to researchers who newly identified the species.
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