Blue Whale

The blue whale is larger than any other animal that has ever lived on the earth, including all known dinosaurs. What makes the blue whale ideally suited for having such a gigantic size?

• It is a mammal.

• It lives in the ocean.

• It is very evolved.

• It needs great size to make rapid dives.

Besides humans, what is the only known natural enemy of the blue whale?

• Orca.

• Great white shark.

• Giant squid.

• Sting ray.

Do blue whales live and travel mostly in large groups?

• Yes

• No

What part of the blue whale is used to identify each individual whale?

• Eyes.

• Dorsal fin.

• Tail fins.

• Head.

The color of the blue whale is made quite obvious by its name. However, when they are outside of the water what color do they appear as?

• Dark tan

• Gray

• Blue-gray.

• Black.

At the beginning of the twenty-first century, in which ocean are you unlikely to see a blue whale?

• Atlantic

• Arctic

• Indian

• Southern

Pygmy blue whales (which are a subspecies) are smaller than other known blue whales and also differ in what significant way?

• A larger head compared to the body

• A blow hole that has a different shape.

• All of these.

• A shorter tail.

Does the blue whale create the loudest sustained noise of any animal on earth?

• Yes

• No

Has the blue whale ever been observed making sounds so as to warn other whales of possible dangers?

• Yes

• No

What sensory ability of the blue whale is thought to be very weak?

• Smell

• All of these

• Taste

• Sight