Squid in the Twilight Zone
In Squid in the Twilight Zone, narrator Sir David Attenborough highlights the Humboldt squid that lives at some of the deepest depths of the ocean. This video is excerpted from BBC’s Blue Planet II, a natural history series that explores the world's oceans, the animals that live in them, and the threats they face, using modern filming techniques and equipment to capture previously unseen areas of the ocean.
Lesson Express
Q: What per cent of fish can live in the twilight zone?
A: Ninety per cent of fish can live here.
Q: What happens when there are no longer any fish for the squid to eat?
A: They turn on each other.
Q: How far down do the squid live in the twilight zone?
A: They are 2,625 feet (800 meters) deep.
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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.
In A Sea of Doom Beneath the Pacific, narrator Sir David Attenborough investigates the world of the deep ocean, where only a small amount of light shines and animals have evolved in interesting ways. This video is excerpted from BBC’s Blue Planet II, a natural history series that explores the world's oceans, the animals that live in them, and the threats they face, using modern filming techniques and equipment to capture previously unseen areas of the ocean.
In Hatchet Fish in the Twilight Zone, narrator Sir David Attenborough describes how predators and prey interact in the "twilight zone." Watch how a hatchet fish has adapted to hide in low light and how its predator has adapted to be able to find it. 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.