When octopuses and fish hunt in groups in the Red Sea, the leadership roles are more dynamic than researchers knew — as are some ways the animals enforce cooperation.

What is the best fish to eat for your health? Experts offer a list of the fish with the most benefits — from salmon to sardines, oysters and more — plus which fish to avoid and why.

These fish are often the most common recipient of octopus punches, and seemingly act only out of self-interest, seeking to steal prey from others, Sampaio explains.

The U.S. Fish and Wildlife first proposed the species be taken off the endangered and threatened list in 2021, as they had not been seen since as early as 1899 and as late as 2004.

As a registered dietitian and non-fish eater, I dove deep into the latest research, chatted with fellow nutrition experts and bravely tested top-rated products (yes, even the fishy-tasting ones ...

Some fish like salmon also have the added benefit of being full of omega-3 fatty acids, which are healthy fats that can help to raise good cholesterol and lower triglycerides. Or so we thought.