(The Conversation) – Everyone has one, but you might not know much about it. Here biologist Sarah Leupen, who teaches human and comparative animal physiology, explains the ins and outs of belly ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (The Conversation) – Everyone has one, but ...

Hot, young adults are blinging out their belly buttons again. Navel piercings are back in yet another revival of a 1990s and Y2K fashion trend. Margot Robbir wearing a custom Schiaparelli look that ...

(THE CONVERSATION) – Everyone has one, but you might not know much about it. Here biologist Sarah Leupen, who teaches human and comparative animal physiology, explains the ins and outs of belly ...