Fish is any aquatic vertebrate animal that is covered with scales, and equipped with two sets of paired fins and several unpaired fins. Most fish are "cold-blooded", or ectothermic, allowing their body temperatures to vary as ambient temperatures change. Fish are abundant in most bodies of water. They can be found in nearly all aquatic environments, from high mountain streams to the abyssal and even hadal depths of the deepest oceans. At 31900 species, fish exhibit greater species diversity than any other class of vertebrates.
Just a few of people know about fishes that can walk or live longer in the land. There’re about 6 kind of fishes which can do that. They are Walking Catfish, Snakehead, Wooly Sculpin, Eel catfish, Climbing Gourami,and Mudskipper. Walking Catfish or Clarias batrachus is kind of bream that can be found in southeast asia. it’s named Walking Catfish because of its ability to “walking” in the dry area to find some food or suitable environment to live. While it does not truly walk as most bipeds or quadrupeds do, it has the ability to use its pectoral fins to keep it upright as it makes a sort of wiggling motion with snakelike movements.
Snakehead or Channidae is a family of freshwater fish native to Africa and Asia. These predatory fish are distinguished by a long dorsal fin, large mouth and shiny teeth. Snakehead can grow until 40 inches even 60 inches. Their ability to walk on the ground has given them a reputation as “Frankenfish”. It can’t only breath atmospher air but also it can survive in the land for 4 days if they’re body still wet. And it’s known for its migration that can reach for ¼ mile with wiggling motion.
Wooly Sculpin or Clinocottus analis is kind of fish that grow in california. Wooly Sculpin eat small animals like snail, worm, and crab. This fish can survive to out from water for 24 hours. It will be catch its food by jump up and catch its prey quickly.