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
What Do Octopus Eat. I had an octopus in an aquarium once. The answer is that it will eat anything that goes in the aquarium. I have seen it turn upside down, suckers out, and eat small brine shrimp. The shrimp are caught by individual suckers and then transported sucker by sucker to the mouth. If a fish goes in the aquarium, the octopus will send one of its tenticles (one of the two below its eyes) and catch the fish with just the tip. It will then play the fish like a fisherman quickly wearing it out and then it will grab it with all tenticles. They will eat hermit crabs in large shell. Nothing is safe. They are amazing.