Add Yahoo as a preferred source to see more of our stories on Google. Snorkeling and diving are popular activities in coastal areas, especially for folks on vacation. Seeing underwater isn't something ...

If you liked this story, share it with other people. Tierney Thys spent decades studying the giant ocean sunfish, using its improbable form to ask broader questions about life in the open ocean.

My first view of an ocean sunfish was on a wall at a natural history museum during my freshman year in college. At first glance, I thought that someone had displayed half of a fish. The tail was ...

Snorkeling and diving are popular activities in coastal areas, especially for folks on vacation. Seeing underwater isn't something most people can do every day, and you never know what kinds of unique ...