Starfish - Wikipedia
Starfish are marine invertebrates. They typically have a central disc and usually five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates.
Starfish facts for kids - National Geographic Kids
There are around 1,600 different species of starfish living in the world’s oceans, where they occupy every type of habitat including tidal pools, rocky shores, sea grass, kelp beds and coral reefs. Some starfish are even found on sandy seabeds 9,000 metres deep!
Starfish (Sea Stars) - National Geographic
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...
Starfish (Sea Star) - Ocean Info
A starfish, also sometimes known as a sea star, is a star-shaped echinoderm commonly found throughout the world’s oceans. There are around 1,900 species of starfish around the world living in the seabed.
Sea star | Echinoderm Anatomy & Adaptations | Britannica
2024年11月11日 · Study how sieve plates and suction-cupped tube feet enable sea stars to catch prey and move through water Anatomy and physiology of starfish tube feet.
Starfish - A-Z Animals
2024年5月27日 · Starfish, also known as sea stars, are some of the most important members of the underwater kingdom. Although they aren’t technically fish, sea stars are animals that are still present in nearly every coastal habitat and can be found as low as the abyssal layer.
What Is a Starfish? Are They Really Fish? - ThoughtCo
2019年3月3日 · The word starfish refers to about 1,800 species of marine animals that are star-shaped. The common term starfish is confusing, though. Starfish aren't fish - finned, tailed animals with backbones - they are echinoderms , which are marine invertebrates.