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15.6: Introduction to Fishes

  • Page ID
    44756
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    What you’ll learn to do: Identify characteristics of fishes

    Modern fishes include an estimated 31,000 species. Fishes were the earliest vertebrates, with jawless species being the earliest and jawed species evolving later. They are active feeders, rather than sessile, suspension feeders. Jawless fishes—the hagfishes and lampreys—have a distinct cranium and complex sense organs including eyes, distinguishing them from the invertebrate chordates.

    Contributors and Attributions

    CC licensed content, Original
    • Introduction to Fishes. Authored by: Shelli Carter and Lumen Learning. Provided by: Lumen Learning. License: CC BY: Attribution
    CC licensed content, Shared previously

    15.6: Introduction to Fishes is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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