Dolphin Communication and Echolocation

The video explores how dolphins perform tricks and communicate underwater. Dolphins use unique sounds like squeaks and whistles to identify themselves, similar to human names. Mother dolphins whistle to their babies to help them recognize their mothers. Dolphins also use echolocation, bouncing sound waves off objects to navigate and find food, akin to hearing echoes in a large auditorium.

Why is it difficult for humans to speak underwater?

• Water distorts sound waves.

• Water absorbs sound completely.

• Water amplifies sound waves.

• Water makes sound waves travel faster.

What unique feature do dolphins use to identify themselves?

• A distinct swimming style.

• A unique whistle.

• A special fin shape.

• A specific color pattern.

What sounds do dolphins use to communicate?

• Barks and howls.

• Chirps and tweets.

• Squeaks, whistles, and clicks.

• Roars and growls.

How do mother dolphins help their babies recognize them?

• By jumping out of the water.

• By changing their color.

• By swimming in circles.

• By using a unique whistle.

What is echolocation primarily used for by dolphins?

• To avoid predators.

• To navigate and find food.

• To play with other marine animals.

• To communicate with other dolphins.

How do dolphins use sound waves in echolocation?

• By converting them into light.

• By absorbing them into their bodies.

• By bouncing them off objects.

• By amplifying them through water.

What is the similarity between human echoes and dolphin echolocation?

• Both are used to find food.

• Both are used to identify individuals.

• Both are used to communicate.

• Both involve bouncing sound waves.