Akemi Iwaya is a devoted Mozilla Firefox user who enjoys working with multiple browsers and occasionally dabbling with Linux. She also loves reading fantasy and sci-fi stories as well as playing "old school" role-playing games. You can visit her on Twitter and Google+.
Earthworms don’t have hearts like mammals, but they do have “aortic arches” to help circulate blood. What aortic arches lack in complexity, however, is made up for in numbers–earthworms have five of them spread throughout their long bodies.