1 When Denzel Washington talks about challenging death to a wrestling match, you suddenly sense that everythingâs going to be all right.
Now we know that fish with scales AND fins are equipped with a digestive system that prevents the absorption of poisons and toxins into their flesh from the waters they call home. Flounder, cod, haddock, and salmon are a few examples of fish with scales and fins. Catfish have fins, but do not have scales. These scavengers are primarily bottom feeders and have digestive systems designed to absorb toxins from the water. Clams, lobster, shrimp, crabs, mussels and squid do not have scales or fins and are believed to be highly toxic. They naturally absorb all the toxins in the water they live in.
Other species, like the Common Eel appear to have no scales but they really have microscopic scales deeply embedded in their dermis. Even in those fish that have scales they do not always cover the whole body. The size, and distribution of scales over a fish's body often, but not always, reflect the way it lives.Thus fish that swim quickly, or that live in fast flowing waters (Trout, Tuna etc) tend to have small scales, while fish that swim slowly in slow moving waters tend to have larger scales, i.e. Carp.ther species, like the Common Eel appear to have no scales but they really have microscopic scales deeply embedded in their dermis. Even in those fish that have scales they do not always cover the whole body. The size, and distribution of scales over a fish's body often, but not always, reflect the way it lives.