The world's biggest coral — an organism made up of about a billion polyps — is about three times bigger than the previous ...

Phil Clarke Hill /Corbis News/Getty Images Not long ago, tourists considered Tulum to be one of the best-kept secrets in ...

Or sign-in if you have an account. 'Mail and parcels will not be processed or delivered for the duration of the national strike,' Crown corporation advises You can save this article by registering ...

Planet or Plastic? is National Geographic’s multiyear effort to raise awareness about the global plastic trash crisis. Come to this page often to learn more, and find out what you can do to ...