Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...

We know this isn't the most appealing of topics, but it's possible you don't know how to clean your belly button. And no, we don't mean with belly button piercings (which are back, FYI). We mean: how ...

If you've ever wondered what happens if you don't wash your belly button – if anything at all – then wonder no more. And to start, all we have to say first of all is that if you aren't someone who ...

Editor’s Note: The views expressed in this commentary are solely those of the writer. CNN is showcasing the work of The Conversation, a collaboration between journalists and academics to provide news ...