Summary
Mark builds an underwater maze to test an octopus's problem-solving and shows off the animal's remarkable body and senses. It highlights how an octopus takes in and acts on information.
Viewer safety
Ages 7+
Made for a general YouTube audience — an occasional mild or bleeped word can slip in, so preview if your classroom bar is strict.
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Teaching resources
Discussion questions
Talk about it
An octopus senses its world through its eyes and arms and can change shape, color, and squeeze through gaps. These structures and senses help it solve the maze.
- What body features make the octopus so good at getting through tight spaces?
- How does the octopus gather information about the maze?
- What surprised you most about how the octopus behaved?
Quick work-a-long
Vocabulary: structure, senses, adaptation, behavior.
Try it: List three octopus features and the job each does. Which would help most in a maze?

