Residents of the Twilight Zone
In 500 Meters Down: Residents of the Twilight Zone, narrator Sir David Attenborough describes life in the ocean's twilight zone. Watch parasitism, jellyfish predators, and transparent animals living in the twilight zone. 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.
Lesson Express
Q: What is the challenge for animals in the twilight zone?
A: The animals need to see, but they also need to avoid being seen.
Q: What does the phronima use for a home?
A: The phronima stole the body of a jellyfish and is using it for a home for her offspring.
Q: How do comb jellies catch their prey?
A: They let out long, sticky nets to catch their prey.
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