TED: Underwater astonishments | David Gallo

The video explores the wonders of the deep sea, highlighting bioluminescent creatures captured by Dr. Edith Widder's camera. It discusses the limited exploration of the ocean and the surprising biodiversity found. The focus then shifts to cephalopods, showcasing their remarkable camouflage abilities, as demonstrated by Dr. Roger Hanlon's work. The video concludes with insights from shallow waters, emphasizing the importance of camouflage for survival among predators.

What is the primary purpose of bioluminescence in deep-sea creatures?

• To warm themselves in cold waters

• To avoid predators and attract prey

• To navigate through the ocean

• To communicate with humans

Which scientist is known for capturing images of deep-sea bioluminescent creatures?

• Dr. Roger Hanlon

• Dr. Sylvia Earle

• Dr. Edith Widder

• Dr. Jacques Cousteau

How do octopuses use their surroundings in shallow waters?

• By building nests

• By changing color and texture to blend in

• By creating loud noises

• By swimming rapidly away

What unique behavior do male squids exhibit during fights?

• They swim in circles

• They change color to white

• They sing to each other

• They build sandcastles

What is a notable feature of the giant Australian cuttlefish?

• It can fly

• It glows in the dark

• It has droopy eyes

• It can mimic algae

How do octopuses avoid being seen by predators?

• By hiding in caves

• By releasing a strong odor

• By mimicking rocks and blending into the environment

• By swimming at high speeds

What is the octopus's response when it feels threatened?

• It sings loudly

• It releases a cloud of ink

• It plays dead

• It jumps out of the water