name the fish which can survive both inside and outside the water....?????

Answer 1

The Dipnoi are a group of sarcopterygiian fish, are are commonly known as the lungfish. Their "lung" is a modified swim bladder, which in most fish is used for buoyancy in swimming, but in the lungfish also absorbs oxygen and removes wastes. Modern lungfish in Africa and South America are able to survive when their pools dry up by burrowing into the mud and sealing themselves within a mucous-lined burrow. During this time, they breathe air through their swim bladder instead of through their gills, and reduce their metabolic rate dramatically. These fish will even drown if they are kept underwater and not allowed to breathe air!

Lungfish are believed to be the closest living relatives of the tetrapods, and share a number of important characteristics with them. Among these characters are tooth enamel, separation of pulmonary blood flow from body blood flow, arrangement of the skull bones, and the presence of four similarly sized limbs with the same position and structure as the four tetrapod legs. However, there is still debate about the relationships among the Sarcopterygii.
http://www.ucmp.berkeley.edu/vertebrates/sarco/lungfish1sm.jpg

Answer 2

Lung Fish
Lungfishes are fish belonging to the order Dipnoi. Lungfish are best-known for retaining characteristics primitive within the Osteichthyes, including the ability to breathe air, and structures primitive within Sarcopterygii, including the presence of lobed fins with a well-developed internal skeleton. Today, they live only in Africa, South America, and Australia. While vicariance would suggest this represents an ancient distribution limited to the Mesozoic supercontinent Gondwana, the fossil record suggests that advanced lungfish had a cosmopolitan freshwater distribution and that the current distribution of modern lungfish species reflects extinction of many lineages following the breakup of both Pangea and subsequently Gondwana and Laurasia.

Answer 3

Lungfish can survive burried in dried lake bed mud, however they're still 'in water' in some sense.

Our skins cover our bodies to keep our insides 'in water', so it depends on how you want to define it realy.

Eels will also crawl across the ground between drying streams if they need to, although they can't survive in the open for long.

Answer 4

Channidae is a family of freshwater perciform fish commonly known as snakeheads, and is native to Africa and Asia. There are two genera, Channa in Asia, and Parachanna in Africa, consisting of 30 species. These predatory fishes are distinguished by a long dorsal fin, small head with large head scales on top, large mouth and teeth. They have a physiological necessity of breathing atmospheric air, which they do with a suprabranchial organ: a primitive form of a labyrinth organ.

Answer 5

Lungfish, Walking fish

Answer 6

Lungfish can survive burried in dried lake bed mud, however they're still 'in water' in some sense.

Our skins cover our bodies to keep our insides 'in water', so it depends on how you want to define it realy

Answer 7

Several types can. The lungfish is one species. There are "walking catfish", I believe, in Florida.

Answer 8

Check it out at:
http://www.npca.org/magazine/2005/fall/rare_endangered.html

Answer 9

It is a catfish

Answer 10

catfish