FISH PICTURES, UNDERWATER FISH STOCK PHOTOS BELOWMost fish are cold-blooded, entirely aquatic vertebrates that have paired fins, torpedo-like bodies, and lay eggs. Many breathe by means of gills, but a few breath atmospheric air via lung-like organs or other adaptations of their bodies. A few saltwater fish, such as tuna, swordfish, and a few sharks, are able to maintain body temperatures above that of the surrounding water. Many fish have highly developed senses of sight and smell, as well as the ability to detect movement and vibration in the water with their lateral line organ. Scales are commonly found on bony fish, while some fish, such as catfish and eels, have no scales. Fish are very popular animals, as a commercial food source, in sport fishing, and as entertainment in public aquariums and private fish tanks.On this page you will find stock photos of freshwater fish, saltwater fish, game fish, bass, trout, and a variety of underwater and undersea subjects. |
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