
Starfish
Habitat Understanding
Starfish live in the ocean, not in freshwater lakes or rivers.

The aquarium's saltwater tanks are perfect for starfish.
Physical Diversity
Some starfish have more than five arms, up to fifty!

This species of starfish has nine arms.
Not Actual Fish
Despite their name, starfish are echinoderms, not fish. They don't have gills, scales, or fins.

Starfish don't swim like fish; they crawl with tiny tube feet.
Compare with
Asteroid
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension