Cnidarians: Anemone Swims Away from Sea Star

While most sea anemones move slowly along rocks, Stomphia swim to escape predators. Viewers see a sea star sneak up on an anemone ready to attack. The unsuspecting anemone retaliates quickly and swims away awkwardly as part of a larger series of videos.

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CCSS: Adaptable
NGSS: Designed
Instructional Ideas

  • Research what sea stars eat
  • Create a Venn diagram of the types of cnidarians and their habits, such as swimming and defense methods
Classroom Considerations

  • Video permits streaming or downloading
Pros

  • Requires very little class time to share
  • Shows an interaction rarely observed in nature
Cons

  • None