1 Back problems. 2  Spine problems in the back near the lower ribs can pinch the nerves that travel through the groin area and cause groin and thigh pain. 3  Spine problems include a herniated disc or lumbar narrowing (stenosis).
Fish diets are determined by which organisms are readily available in the fish's habitat. Some larger fish eat smaller fish and sometimes are cannibalistic, eating smaller fish of their own species. Catfish in the wild swim along the bottom of rivers and eat dead fish, animal feces and just about anything they can find. Learn more about Fish
Like other wild animals, trout feed on other aquatic animals including water-dwelling insects, minnows and crayfish. Some fish are cannibalistic, and will eat smaller members of their own species! Trout get sick in polluted water, as do the aquatic animals they eat for food. Itâs important to keep rivers, lakes and streams clean so that the insects, crayfish and smaller fish can live in healthy, cool water.