Facts about catfish

Most catfish species have small eyes and primarily find food by using their barbells, sense of smell and sense of taste. Most species are omnivorous and consume a wide variety of foods -- typical catfish eat things like other fish, invertebrates, aquatic plants and fish eggs. However, some catfish, such as some species in the family Loricariidae, specialize on strange foods, such as wood and algae. Other catfish are parasitic and feed on the blood of other fish. Scientists have documented giant catfish, such as the European wels, consuming rodents, frogs and aquatic birds in addition to their typical prey species.