• Adventure
  • Auto
  • Culture
  • Entertainment
  • Home & Garden
  • Money
  • Science
  • Tech
  • Video
  • Shows
  • Blogs
  • Quizzes
  • Games
  • Random Article
  • Engineering
  • Environmental Science
  • Forces of Nature
  • Innovation
  • Life Science
  • Military
  • Physical Science
  • Dictionary
  • Science Vs. Myth
  • Space
  • Transportation
  • Zoology
  • Home / 
  • Science / 
  • Zoology / 
  • Mammals

More Stuff Like This

Watch awe-inspiring shows on TestTube.
Watch awe-inspiring shows on TestTube.
10 Awesome New Inventions You'll Never Hear About
10 Awesome New Inventions You'll Never Hear About
10 Ways the World Will End
10 Ways the World Will End

Do whales and dolphins sleep?

  • Page
  • 1
    Do whales and dolphins sleep?
  • 2
    Lots More Information
  • Lots More Information

    Related HowStuffWorks Articles

    • How Sharks Work
    • How Whales Work
    • How the Georgia Aquarium Works
    • How Sleep Works 
    • How Jellyfish Work
    • How Squid Work
    • How do fish rise and sink in the water?
    • Marine Mammal Quiz

    More Great Links

    • Jeff Corwin on Animal Planet
    • WhaleNet
    • World Wide Whale
    • Marine Mammal Net

    ­

    Print
    Cite This!
    Close 
    Please copy/paste the following text to properly cite this HowStuffWorks article:

    "Do whales and dolphins sleep?"  24 May 2001.  HowStuffWorks.com. <http://science.howstuffworks.com/zoology/mammals/question643.htm>  24 May 2013.
    Cite
    Feedback
  • Page
  • 1
    Do whales and dolphins sleep?
  • 2
    Lots More Information
  • More To Explore

    All Things Science

    10 Incredible Wind Power Facts
    10 Incredible Wind Power Facts
    10 Remarkable Exoplanets
    10 Remarkable Exoplanets
    Fact or Fiction: Earthquake Quiz
    Fact or Fiction: Earthquake Quiz
    Top 10 Things That Women Invented
    Top 10 Things That Women Invented
    Strange, Spooky, Scary: The Supernatural Quiz
    Strange, Spooky, Scary: The Supernatural Quiz
    Watch 100 Greatest Discoveries videos »

    You Might Also Like

    How Coral Reefs Work

    How do coral polyps mere millimeters in length form the world's largest living structures? Will these giants of the sea last much longer if the present rate of destruction continues?

    How Angel Sharks Work

    You probably keep an eye out for that telltale fin swimming toward you when you hit the beach. Did you ever think that there might be sharks on the ocean floor, too?

    Popular Articles

    • Pit Boss: Wine Tasting
    • Dogs 101: Brussels Griffon
    • How strong is a shark's bite?
    • Most Popular
    • Most Watched
    • Most Popular

      • 10 ‘Healthy’ Things That Aren't
      • Quiz: How does color affect you?
      • Top 10 Innovations in TV Broadcasting
      • What is water boarding?
      • 10 Weird Inventions That Made Millions
    • Most Watched

      • How It's Made
      • Understanding Bridges Videos
      • How Do They Do It?
      • The Stuff of Genius
      • 100 Greatest Discoveries

    Don't Miss

    Introducing a bold lineup of awe-inspiring shows.
    Introducing a bold lineup of awe-inspiring shows.
    Look into the Future with Fw:Thinking
    Look into the Future with Fw:Thinking
    See Stuff You Should Know – videos, podcasts &amp; more!
    See Stuff You Should Know – videos, podcasts & more!

    CHECK OUT OUR PODCASTS

    STUFF NATION NEWSLETTER THE HOW BEHIND TODAY'S NEWS
    HOWSTUFFWORKS
    • Adventure
    • Auto
    • Culture
    • Entertainment
    • Health
    • Home & Garden
    • Lifestyle
    • Money
    • Science
    • Tech
    MORE STUFF
    • Blogs
    • Games
    • HSW Tools
    • RSS
    • Maps
    • Podcasts
    • Quizzes
    • Newsletters
    • Video
    OUR WEBSITES
    • Animal Planet
    • Animal Planet Live
    • Destination America
    • Discovery Channel
    • Discovery Fit & Health
    • HSW Brazil
    • HSW China HowStuffWorks China
    • Investigation Discovery
    • Oprah Winfrey Network
    • Revision3
    • Science Channel
    • StuffYouShouldKnow
    • TLC
    • Discovery Education
    • Discovery Retreats
    • Store
    CUSTOMER SERVICE
    • Advertising
    • Contact Us
    • Help
    CORPORATE
    • About Us
    • Careers @ Discovery
    • Privacy Policy
    • Visitor Agreement
    TAKE US WITH YOU
    FOLLOW US
    © 1998-2013 HowStuffWorks, Inc