The Kelp Forest in Late Autumn
In The Kelp Forest in Late Autumn, narrator Sir David Attenborough describes what happens in a kelp forest in the late fall. Watch the birth of a dogfish shark. Watch a hooded sea slug find food. Watch what happens to kelp as the temperature drops. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history
Lesson Express
Q: What hatched from the pod?
A: A dogfish shark hatched from the pod.
Q: What can the dogfish shark do immediately when it’s born?
A: The dogfish shark is so developed that it can immediately start to hunt.
Q: What happens to the plankton and kelp as the weather changes?
A: The plankton disappears and the kelp dries up and rots away.
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In Creatures That Live on Kelp, narrator Sir David Attenborough looks at bryozoans that eat kelp, and amphipods that eat algae and kelp. Learn how amphipods protect themselves and their offspring. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.

In Kelp Thrive With Their Attack and Defense Techniques, narrator Sir David Attenborough witnesses the attack and defense techniques of unusual marine creatures. Sea urchins gang up on kelp, a starfish uses its feet to taste prey, and sand dollars cluster together to avoid being liquefied! This video is excerpted from BBC's Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.