And the gills should be bright red or pink, indicating the fish is fresh. If the gills are brown or gray, the fish is past its prime. Once you buy your fish: Make the fish counter your last stop ...

What is a betta fish? Betta fish—also known as Siamese ... This ability develops over time: hatchlings rely on their gills, but adults gulp air and capture the oxygen from it using something ...

The coelacanth has gills similar to those of fish living at the depths in which ... The scales are a steely blue-gray in color and bear irregular white spots, the patterns of which are distinctive ...

Grey mullet is available both whole and filleted, fresh and frozen. It’s best bought between September and February, outside of the spawning season, to protect stocks. Whole grey mullet need the ...