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Amazing Animals: Marine Mammal Quiz
by Staff
When you think of marine life, you probably think about scaly fish with gills, but there are a variety of aquatic mammals that breathe air. So hold your breath and dive into the marine mammals quiz!

What's the largest animal on Earth?

  • blue whale
  • humpback whale
  • whale shark

What marine mammal is referred to as the "wolf of the sea"?

  • narwhal
  • manatee
  • orca

What do baleen whales lack that other whales have?

  • eyes
  • teeth
  • blowholes

What's the longest amount of time that whales can go without breathing?

  • 20 minutes
  • 75 minutes
  • two hours

What are narwhal tusks made of?

  • ivory
  • calcium
  • limestone

What special sense do dolphins and some whales use to hear underwater?

  • passive sonar
  • echolocation
  • lateral line

Which body part of a walrus is most useful for hunting?

  • eyes
  • tusks
  • whiskers

What's the easiest way to tell the difference between true seals and sea lions?

  • Look at the whiskers.
  • Look at the ears.
  • Look at the size of the body.

"Floating gold" is another name for what marine mammal excretion?

  • whale vomit
  • walrus sweat
  • dolphin feces

Which of the following is a difference between dolphins and porpoises?

  • Porpoises are considered toothed whales, while dolphins aren't.
  • Porpoises have rounded, blunt muzzles, and dolphins have pointed ones.
  • Porpoises are shier than dolphins.