This story appears in the March 2020 issue of National Geographic magazine. Studying elusive fish that dwell in dark mud chambers is no easy feat. Thus the science of the many species of mudskippers ...

You can teach a mudskipper to take food from your hand or simply enjoy their many interesting faces as they beg for attention. Either way, these land and water fish are astonishing both physically and ...

Qin Rao, MD, is a board-certified physician based in New York City. He currently works as a gastroenterologist and hepatologist at Manhattan Gastroenterology. Grey poop can be caused by liver issues ...

Joy Emeh is a professional health writer, editor, content strategist, and career development coach with up to four years of experience in the health writing space. She is interested in all things ...

According to the Cleveland Clinic, constipation is one of the most frequent gut health complaints in the US. One of the most ...

Constipation is no joke—that backed-up feeling can wreak havoc on your well-being. While certain over-the-counter medications offer a quick fix, diet plays a large role in your body’s inability to ...