A protective mucous cocoon surrounds this parrotfish as it sleeps in Australia's Great Barrier Reef. This layer of protection helps fend off predators so parrotfish can get a good night's rest.

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

What if the world’s third healthiest food isn’t a superfruit or a leafy green, but a simple fish that delivers more nutrients per bite than most vegetables? Ocean perch, or rockfish, is making subtle ...

Children who eat fish at least once a week sleep better and have IQ scores that are 4 points higher, on average, than those who consume fish less frequently or not at all, according to new findings ...

Like you, my family and I do our best to eat healthfully—and that includes eating plenty of fish. In our house, we love wild-caught salmon, tuna steaks on the grill, and even the occasional ...