By definition, fish are animals that live in water, have gills and lack limbs. They are also chordates, which means they have a backbone-like structure that provides support for the body and acts as an anchor for the major muscles.
Some types of fish are sharks, rays, lampreys, catfish, lungfish, herring, tuna, pufferfish, coelecanth and gobies. Other types include angelfish, tetras, gouramis, cichlids, guppies and goldfish. Each of these refer to general types of fish, and each type may include many distinct species or variet
The best times of day to fish are one hour before and after high tide, and one hour before and after low tide, according to The Old Farmer's Almanac. Just after sunup and just before sundown are also great times to fish because this is when fish feed.
Fish live in almost every available body of water, including rivers, lakes, oceans and streams. The species of fish determines whether it lives in saltwater or freshwater. Fish also live at various water depths with some fish preferring deep water and others staying close to the surface.
The fastest fish in the world is the sailfish; it can swim 68 miles per hour and generally prefers warmer parts of the ocean. The second fastest fish is the marlin, a species that can swim 50 miles per hour.
The number of fish in the world is always changing due to reproduction, predation, human consumption and environmental factors, among other reasons. Thus, it cannot be known exactly how many fish there are in all.
Good times to go fishing include late afternoon or early evening in the spring or fall, and from sundown to dark in the summer. Fish bite at this time in the spring and fall because the water is warm from the sun shining directly over it.
A fish is an animal. It is a multicellular organism with eukaryotic cells arranged into tissues and organs. Eukaryotic means that fish cells have nuclei and other structures that are protected by membranes.
While they do not have external ears, fish are able to perceive underwater sounds through their internal ears. Fish pick up sounds through both their internal ears and lateral lines down their bodies.
Animals that eat fish include other fish like sharks, pikes, walleye, barracudas, mackerel, tuna, swordfish, marlin, groupers, species of bass and codfish. Mammals that eat fish include dolphins, black and brown bears, seals and sea lions, sperm whales, gray whales, killer whales, fin whales, and hu