“Dr. Satoru Kamegai, our museum’s first director, had the man take an agent that gets rid of parasites.” And, the story goes, the giant Dibothriocephalus nihonkaiensis tapeworm was expelled ...

A giant species of fish that was first discovered seven years ... While the fish lie on the ocean’s surface, birds clean them ...

sheltering underneath a giant phantom jelly. In return, the fish aided the jelly by removing parasites. Lydia Smith is a health and science journalist who works for U.K. and U.S. publications.

“In some fish, like cod, they may be more prominent and darker—like stray pieces of seaweed. The tapeworm can be gray-white, with a soft, flabby appearance.” It depends. The big issue is how ...

Why it's awesome: Earth's oceans are home to many secretive and unusual creatures that humans rarely see — including giant ...