The Biology Of Echinoderms

Spherical animal with spiny protrusions. Caption: Spines are adapted for different habitats:

Part of the "Branches on the Tree of Life" series. Echinoderms are one branch of the deuterostome line of animal evolution, the branch to which Chordates also belong. Covers phylum characteristics and key biological details for five classes: sea stars, brittle stars and basket stars, sea urchins and sand dollars (including developmental stages), sea cucumbers, and crinoids (feather stars).

(Source: DCMP)

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Files 1

  • The Biology Of Echinoderms

    Type:
    Video
    Format:
    Streaming
    Accommodations:
    English Captions - Auditory, English Audio Descriptions - Visual
    Languages:
    English
    License:
    DCMP Membership
    Author:
    Biomedia Associates
    Length:
    17 minutes