Just like other meats, fish can also be categorized into red and white varieties. This is generally distinguishable by eye, with the color of the fish's flesh being the major giveaway. Plus, these two ...

Add Yahoo as a preferred source to see more of our stories on Google. Salmon gets the stamp of approval from dietitians. But what other types of fish should you be eating? (Getty Creative) (Catherine ...

Leaving aside the issue of exactly how much of their body they can see (some fish, like eels, can probably see quite a bit of it), the question of how fish recognise their own species is an important ...