Where do starfish live?

All starfish, or sea stars, live in the ocean on the seafloor. Some starfish live in shallow water, others in deep water. They can live in cold water, like the north and south poles, and warm areas, like coral reefs. They are only found in saltwater.  

Starfish are not fish, they are invertebrates which means they do not have a backbone. They have five arms and spiny skin, although some starfish can grow as many as 40 arms!

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Fun facts

  • Starfish have no brain.
  • Starfish have two stomachs. 
  • Starfish are very good at crawling and can walk and climb up and down the sides of rocks.
  • Starfish cannot swim. 
  • They cannot survive in freshwater.