Sea Star
Por um escritor misterioso
Last updated 21 setembro 2024
You probably know sea stars as starfish, the name sea stars are commonly known by. But sea stars aren’t really fish. Sea stars, like sea urchins and sand dollars, do not have backbones, which makes them part of a group called invertebrates. Fish have backbones, which makes them vertebrates. Got it? Most sea stars sport spiny skin and five arms, although some can grow as many as 50 arms. The arms are covered with pincerlike organs and suckers that allow the animal to slowly creep along the ocean floor. Light-sensitive eyespots on the tips of the arms help the sea star find food. Favorites on the menu include mollusks such as clams, oysters, and snails. The sea star eats by attaching to prey and extending its stomach out through its mouth. Enzymes from the sea star’s stomach digest the prey. The digested material enters the sea star’s stomach. Tiny organisms can be swallowed whole. Sea stars occupy every type of habitat, including tidal pools, rocky shores, sea grass, kelp beds, and coral reefs. Some sea stars even live in sands as deep as 20,530 feet (9,000 meters). Sea stars aren’t social creatures, but they will congregate in large groups during certain times of the year to feed.
Archaster Typicus - Sand Sifting Sea Star
The starfish's whole body is a head
Study reveals location of starfish's head
Endangered Sea Star May Be Key to Kelp Forest Restoration
Sea stars able to consume kelp-eating urchins fast enough to
Scientists Need Help Observing Oregon Coast Sea Stars - How to Assist
The Blue Linckia Sea Star will stand out while they consume detritus (algae and organic films). Like most sea stars, these have fairly simple needs
Blue Linckia Sea Star (Linckia laevigata)
Sea Star
Starfish do not have arms, but a five-pointed head, study says
Red Cushion Sea Star (Oreaster reticulatus) - ANGARI Foundation
That Which We Call A 'Starfish
OCAq Staff Develop Sea Star Wasting Treatment - Oregon Coast Aquarium
Pink Sea Star - Georgia Aquarium
Some Starfish Have Up to 40 Arms! Plus 10 Other Starfish Facts
How ocean warming is impacting sea stars, Magazine Articles
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