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Which of the following statements are true about dolphins and porpoises?

• They are both fish.

• They are both mammals.

• The dolphin is a fish and the porpoise is a mammal.

• The dolphin is a mammal and the porpoise is a fish.

Which of the following are eaten by both porpoises and dolphins?

• fish

• squid

• crustaceans

• all of the above

How are the teeth of dolphins and porpoises different?

• They are not different/ Both animals have similar teeth.

• The dolphin's teeth are sharp and cone-shaped, but the porpoise's teeth are spade shaped and flatter.

• The porpoise's teeth are sharp and cone-shaped, but the dolphin's teeth are spade shaped and flatter.

What is the primary habitat of dolphins and porpoises?

• Freshwater rivers

• Open oceans and coastal waters

• Desert oases

• Mountain lakes

How do dolphins and porpoises primarily communicate?

• Through body language only

• By changing colors

• Through vocalizations and echolocation

• By releasing scents

Which of the following is a distinguishing feature of dolphins compared to porpoises?

• Dolphins are generally smaller in size

• Dolphins have a more rounded snout

• Dolphins have a shorter lifespan

• Dolphins have a more curved dorsal fin

Layers of fat on a whale are called :

• skin

• blubber

• fur

• chubby

The largest species of dolphin is called

Which is an example of a mammal?

• bird

• turtle

• snake

• cow

What is echolocation?

• the way a whale swims

• how a whale chews food

• how whales find food and escape predators

• how whales are born