Instructional Video

Shape of Life: Marine Arthropods: A Successful Design

Curated by ACT

Learn through this video about marine arthropod such as crabs, shrimps, and lobsters. Understand that these animals have jointed appendages that are both strong and flexible which they use for sensing the world, feeding, and moving. Evolution has adapted these appendages, along with the segmented body, in amazing ways. This animation shows examples of this great potential. A surprising aspect to their body plan is that they wear their skeleton on the outside for protection. We see the incredible process of a crab shedding its exoskeleton, so its body can grow larger. [9:28]

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Classroom Considerations
  • Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)