do fish have tongues?
114284
YES, a lot of people don't think they do but the little 'tongues' that stick up as if screaming "AAAAH!" when you hold a fish by the lip, yep that's it.
20121
Really strange looking fish.
415873
Clown fishes are indeed Actinopterygii, or fishes with skeletal bones.  (In ichthyology, that is the biology of fishes, the plural fishES is actually alright to use when you speak of more than one species.  If you are talking about more than one individuals of one species, you use fish.)  To be exact, they are a member of the largest group of bony fishes, the teleosts.  \n\nBut from a biologist's point of view "fish" is not really a true biological category - or as we say in biology, no real monophyletic group.  It's one of those names under which all animals are subsumed that have a certain shape, that have fins, and that have gills.  But the chondrichthyes (the cartilageous fishes) are very different from the teleosts; it is almost as if you compared a mammal like a mouse, with gecko.  Most ichthyologists (or fish biologists) would therefore say that clown fishes are really teleosts.\n\nThe interesting thing about the different species of clown fish is that they change their sex throughout their life.  For example, the blackfinned clownfish (Amphiprion percula) is protandrous, which means they start out their lives as males and then later in life turn into females.  What determines the exact timepoint of this change is actually social behavior.  Normal Amphiprion percula live in symbiosis with an anemone (meaning the clownfish protects the anemone against certain predators, while the anemone offers protection to the clownfish between its tentacles).  Usually there is one female with a harem of a few males in the anemone.  When the female dies the male of the highest rank begins to change into a female.  This change is controled by hormones, and the hormone levels change in response to the altered social condition (i.e., the female being gone).  There are other hermaphrodite species, like the blue-headed wrass, that start out as females and then turn into males, a strategy called protogynous.  \n\nWell, that bit on hermaphrodism was more than you asked about.  But it's a cool bit, and so I thought I'd throw it in here.  Hope you liked it...
925254
try this.....\n\nhttp://en.wikipedia.org/wiki/Tongue
86909
A difficult question.\nThe two references below have something to say about whether or not fish feel pain. The arguement claiming 'Yes' is related to the evolution of survival behaviours and hard to refute. It does however hold true for any animal which responds negatively to stimuli.\nIt is certainly true that if you stick a pin into a maggot it will wriggle - it certainly does not like it. Fish are none too keen either.
276873
Maverick, catfish are fish and do not have scales!\n\nAnyway, I've already answered the exact same question (did you lose the other one?), so I'll quote myself:\n\nTuna fish and their relatives belong to the family Scombridae, a group that is extremely specialized as high-speed swimmers, and they have very reduced scales that make their body profiles even more hydrodynamic. \nSome scombrids have small to medium-sized scales, and others have a "scaly corselet" (large thick scales in an area behind the head and around the pectoral fins, and the rest of the body naked or covered with tiny scales). \nThe bluefin tuna (Thunnus thynnus) has such a corselet, and the scales on most of the body are so small that the skin appears smooth.
277528
A mammal? Nah. An organism? Yep. All living things are organisms, it's just some are a tad more complex than others. If a shark was a mammal, then it would have to have shark boobies, right? Whoa - there's a scary picture... a shark with boobies. Kinda reminds me of my ex-wife....
996097
other tongues are languages there were many who were there that spoke with different tongues,that is why they spoke in tongues they didn`t know to edify those who didn`t understand.\nThe Holy Ghost Babtizes you  and you have an over flowing and that is the tongue of Angels or Stamering lips.I`ve seen people saved and filled up and they just get the stammering lips this is considered a tongue.I`ve had that happen.
91782
I don't think Finding Nemo set out to portray ocean life accurately. It's a fantastical story. As far as fish communication, I'm sure it exists, but not in the form of "talking." Fish communicate through body gestures most likely, and possibly some other means such as body secretions or even sound production. \n\nWhatever the means, though, fish communication is almost certainly centered around extremely basic topics such as keeping a school together or coordinated hunting in the case of larger fish like sharks.
1081724
Depends on the tongue
39258
No. In fact their pharyngeal area has gill slits and is very different from the throat of tetrapods (terrestrial vertebrates). \nSo sharks can't roar, whatever the movies say :P
631008
Sharks are boneless fish, so very primitive evolutionarily-they harken back a few hundred million years, without very much change- I seriously doubt, both because they are so primitive and havent changed in so long, that they have any remaining vestigial structures.  Generally vestigial structures come from an animal that has evolved from a quite different precursor-sharks are very close to the very first fish that evolved, thus they probably havent had to shed any organs or bones that arent useful.\nRibs? How is that vestigial?  They use their ribs for structural support, just like all fish...
1065310
Sensory and nervous system\nFishes have well-developed nervous systems that organize around a central brain, that is divided into different parts. The most anterior, or front, end of the brain are the olfactory bulbs, which are involved in the fish's sense of smell. Unlike most vertebrates, the cerebrum of the fish primarily processes the sense of smell rather than being responsible for all voluntary actions. The optic lobes process information from the eyes. The cerebellum coordinates body movements while the medulla oblongata controls the functions of internal organs. Most fishes possess highly developed sense organs. Nearly all daylight fish have well-developed eyes that have color vision that is at least good as a human's. Many fish also have specialized cells known as chemoreceptors that are responsible for extraordinary senses of taste and smell. Although they have ears in their heads, many fish may not hear sounds very well. However, most fishes have sensitive receptors that form the lateral line system. The lateral line system allows for many fish to detect gentle currents and vibrations, as well as to sense the motion of other nearby fish and prey. Some fishes, such as catfish and sharks, have organs that detect low levels electric current. Other fishes, like the electric eel, can produce their own electricity.
1013531
They will do it by passing the water over their gills. Fish gills are full of blood vessels containing carbon dioxide. Through the process of osmosis, the small oxygen atom that makes up the water molecule is absorbed into the bloodstream and exchanged to carbon dioxide.
1139465
marine fish live in a salt water environment, and fresh water fishes live in a non-salt water environment. Except for a few small cases, the two cannot live in the other's environment due to the way they are used to living.\n\nIt is the same idea as to why we can't drink salt water. We would be considered "fresh water" while other animals can drink salt water, so they would be considered "marine".
407668
They have mouth openings often with flagellum to help with their filter feeding.  The tail end is thinner and is lighter in color/more transparent.  Just do an image search for amphioxus and see!
1062365
no, because fish have gills (breathe on the outside) unlike us we have lungs in the inside.  In my aquarium tank I have a small mouth Bass & Yellow Perch, when i feed my bass minnows he would have three minnows in it's mouth (minnows literally sticking out it's mouth)/ my perch as well.  They will swim around with half a minnow sticking out it's mouth and act like it's no big deal.  You will see this with bluegill they will take the worm and swim around with it hanging out it's mouth.  I just feed my fish (thanks for reminding me) and I took pictures so if you want to see them just e-mail and I'll send it to you.  \n-About the dead smaller fish stuck in it's throat some fish I catch may puke up fish due to exhaustion.  When i go fishing for walleyes and northern pike I've had them cough up fish on me.  I've had bass do the same.  \n-Death? He could have died due to foul hooking (not meaning snagging) but if it hook in the middle or back of the throat can kill any fish especially if it's kept out of the water to long, just cut the line and release.  It doesn't work out all the time.