Résultats de recherche
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.
STARFISH is a payment platform that lets you shop at national brand merchants and earn unlimited Perks (cash rewards) up to 20%. It also offers a podcast with practical advice and stories to help you live the life you've always wanted.
- Population
- Defensive Adaptations
- Regeneration
- Unusual Feeding
- GeneratedCaptionsTabForHeroSec
There are some 2,000 species of sea star living in all the world’s oceans, from tropical habitats to the cold seafloor. The five-arm varieties are the most common, hence their name, but species with 10, 20, and even 40 arms exist.
They have bony, calcified skin, which protects them from most predators, and many wear striking colors that camouflage them or scare off potential attackers. Purely marine animals, there are no freshwater sea stars, and only a few live in brackish water.
Beyond their distinctive shape, sea stars are famous for their ability to regenerate limbs, and in some cases, entire bodies. They accomplish this by housing most or all of their vital organs in their arms. Some require the central body to be intact to regenerate, but a few species can grow an entirely new sea star just from a portion of a severed ...
Most sea stars also have the remarkable ability to consume prey outside their bodies. Using tiny, suction-cupped tube feet, they pry open clams or oysters, and their sack-like cardiac stomach emerges from their mouth and oozes inside the shell. The stomach then envelops the prey to digest it, and finally withdraws back into the body.
Learn about the starfish, also known as sea star, an echinoderm with no brain but amazing abilities to regenerate and feed. See stunning images of different species and habitats of these marine animals.
- 4 min
7 juin 2024 · Learn about the amazing features and behaviors of starfish, also known as sea stars, which are not true fish but echinoderms. Discover how they regenerate arms, move with tube feet, eat with stomachs inside-out, and have eyes on their arms.
21 avr. 2021 · Sea stars are perhaps more commonly known as starfish, however, there's been a push to change this common name. One reason is that sea stars aren't fish, and...
- 4 min
- 75K
- Animal Fact Files
12 nov. 2009 · Learn about sea stars, also known as starfish, and see stunning photos of their diverse shapes and colors. Sea stars are not fish but echinoderms, related to sea urchins and sand dollars.
2 juil. 2024 · Learn about sea stars, also known as starfish, the spiny-skinned invertebrates with arms and tube feet. Find out how they feed, reproduce, and belong to three orders of echinoderms.
:max_bytes(150000):strip_icc()/starfish-and-purple-sea-urchin-510809471-571e3f555f9b58857dfcf727.jpg&q=Starfish&ck=92DEA3068618136DA6611D9448673C6A&idpp=rc&idpview=singleimage&form=rc2idp "Starfish1")
:max_bytes(150000):strip_icc()/crown-of-thorns-starfish-Borut-Furlan-waterframe-getty-56a5f7763df78cf7728abec4.jpg&q=Starfish&ck=195D5C46252B438A4B1B36394FFC230E&idpp=rc&idpview=singleimage&form=rc2idp "Starfish2")
/Facts-about-sea-stars-2291865-STILL02-v2-69e6acc9f20f470cbfed7b7083a9f178.png&q=Starfish&ck=F72409FFDF3CD00C90136017ECED07AA&idpp=rc&idpview=singleimage&form=rc2idp "Starfish3")
:max_bytes(150000):strip_icc()/close-up-of-orange-starfish-on-sand-489010151-59847f7f22fa3a0010518acc.jpg&q=Starfish&ck=E64EE1D1B38070E1FB8C1CBC7269F365&idpp=rc&idpview=singleimage&form=rc2idp "Starfish4")
:max_bytes(150000):strip_icc()/galapagos--closeup-of-seastar-on-colorful-sand--177721012-571e5a5d3df78c56405914a8.jpg&q=Starfish&ck=C0233AB200570767A3B91290B3A36144&idpp=rc&idpview=singleimage&form=rc2idp "Starfish5")
