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
Beginner bug blueprintsâmayflies, caddis, stoneflies, midges, terrestrials, and more of what trout eat. Mayfly duns have opaque wings and ride the water in an upright position. Trout eat a host of aquatic insects, terrestrial insects, other fish, crustaceans, leeches, worms, and other foods. The food items that are most important to trout and fly fishers are the aquatic insects that spend most of their life cycles underwater in rivers, streams, and stillwaters.