Fish is a high-protein, low calorie food. Sardines are the healthist fish. Here are other fish high in protein and omega-3's and 7 fish you should never eat.

This slimline, eel-like fish has no scales for protection so chooses to use a sea cucumber's sphincter for safety. When you purchase through links on our site, we may earn an affiliate commission ...

Octopuses normally hunt alone, but footage captured by divers has revealed that they can collaborate with fish to find their next meal. The videos, described today in Nature Ecology & Evolution 1 ...