ARTi

Bioluminescence in the deep ocean

Chapter 1

The chemistry of living light

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Answer

Chapter 2

Deep-sea hunting and survival strategies

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Answer

Chapter 3

Defense mechanisms in the dark

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Answer

Chapter 4

Communication and community in the abyss

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YOUR GOAL

Master of Bioluminescence in the deep ocean

Ch 3 · Defense mechanisms in the dark
Projects
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Glow Guard Buddies

teacher Glow Guard Buddies

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teacher The burglar alarm effect

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teacher Glowing ink and smoke screens

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teacher The art of counterillumination

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teacher Sacrificial glowing limbs

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teacher Down in the deep, where no sun shines bright, / Critters make their own living light.

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The art of counterillumination

teacher The art of counterillumination

4h ago

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Fun Fact

Atolla burglar alarm: When attacked, the Atolla jellyfish flashes a bright blue ring to attract a larger predator to eat its attacker.

4h ago

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teacher
Glowing ink and smoke screens

teacher Glowing ink and smoke screens

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teacher
Glossary
counterillumination (noun)
A form of active camouflage where an animal emits light to match the radiance of its background. In the ocean's twilight zone, hatchetfish use ventral photophores to blend with downwelling sunlight and evade predators.

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Quiz

What does the vampire squid release from its arm tips instead of black ink?

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Gossip

Which defense trick would you choose?

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Quiz

How does the Atolla jellyfish's burglar alarm display protect it from predators?

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Quiz

What happens to a predator that consumes an animal covered in burglar alarm mucus?

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Quiz

How does the hatchetfish use counterillumination to hide from predators below?

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Quiz

What color do the green bomber worm's sacrificial balloons glow?

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Quiz

Why is traditional dark ink useless for defense in the midnight zone?

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Quiz

What does the green bomber worm release to distract its enemies?

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Quiz

Which body part can some brittle stars intentionally drop to distract predators while they escape?

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