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  1. Are Starfish a Fish? The Biological Answer - Biology Insights

    Aug 15, 2025 · The common name “starfish” often leads to the misconception that these marine animals are a type of fish. However, despite their aquatic habitat, starfish are not fish.

  2. Sea Stars (Starfish): Characteristics, Feeding and Body Regeneration ...

    Starfish are among the most famous and dramatic examples, being able to grow an entire new body from just a single arm. Starfish also have the ability to regenerate neurons, something not seen in …

  3. Starfish Animal Facts - A-Z Animals

    Sep 27, 2025 · Are starfish really fish? Starfish do not technically meet the scientific qualifications for “fish;” they lack gills, fins, scales, or any of the other identifying creatures.

  4. Starfish | Research Starters - EBSCO

    Starfish, also known as sea stars, are marine invertebrates belonging to the class Asteroidea within the phylum Echinodermata. They are characterized by their distinctive starlike shape, typically with five …

  5. Sea star | Echinoderm Anatomy & Adaptations | Britannica

    Dec 26, 2025 · Sea star, any marine invertebrate of the class Asteroidea (phylum Echinodermata) having rays, or arms, surrounding an indistinct central disk. Despite their older common name, they …

  6. Sea Star | National Geographic Kids

    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...

  7. Everything About Starfish: Facts, Habitats, and Fun Details

    Aug 5, 2024 · Explore starfish anatomy, fascinating facts, and fun coloring pages. Perfect for kids and educational resources on sea stars.

  8. Starfish - Types, Anatomy, Habitat, Diet, Lifespan, & Reproduction

    Sep 10, 2025 · Starfish, also called sea stars, are echinoderms that constitute the class Asteroidea. As their name suggests, they have a characteristically star-like body, with most species having five arms …

  9. Sea Star - Description, Habitat, Image, Diet, and Interesting Facts

    Often mistakenly referred to as “starfish,” the correct scientific term, “sea star,” highlights their true nature as echinoderms, not fish. This distinction is more than just semantics; it underscores their …

  10. Learning About Starfish - ThoughtCo

    May 12, 2025 · Starfish are not really fish as they don't have gills, scales, or backbones. Starfish can regrow lost arms, and some can even regenerate a whole body from an arm. Starfish have a unique …