Does fish drink water?
80015
Yes; they need to, in order to maintain their internal ion/water balance (osmoregulation). Marine fish have to drink constantly to avoid dehydration; they have special cells in their gills to excrete the excess chloride.\nFreshwater fish face the opposite problem: their bodies tend to let water in and their internal ionic concentrations tend to become diluted. Therefore they drink water, retain the ions and afterwards excrete large volumes of very diluted urine. And they also have special cells in their gills for osmoregulation.
1017954
I can show you a website that's a little technical, but should help.\n\nThe basic answer is, not really.  Most lizards are designed not to waste water, so they don't "pee" in the same sense a dog or a cat does.
539761
It because fish produce ammonia which dissolves to form ammonia solution. The ammonia solution is basic thus it increases the pH of water in the aquarium.
746359
Why does a bird fly?  A fish swim?
1032129
Yes, about 40 times their body weight per day for fresh water fish. Water is constantly absorbed through the gills (by Osmosis) and has to be removed by the kidneys and then disposed of by urination
474094
No, they are not fish...the following was taken from Yahoo!\n\nhttp://ask.yahoo.com/ask/20030507.html\n\nTrue fish are vertebrates and belong to the Chordata phylum of the animal kingdom. This group encompasses most of the animals we are familiar with, such as mammals, birds, reptiles, and amphibians, as well as humans. \nStarfish, or sea stars as they are sometimes called, are invertebrates, meaning they have no backbone. These spineless (and we mean that in the best possible way) creatures belong to the spiny-skinned phylum of animals known as Echinodermata and the class Asteroidea.
980202
most of their water or moisture comes from the dead bodies they consume.  They may also drink from lakes, streams, ponds, rivers, etc.
706126
Yes, there are actually quite a few insects and animals that don't drink water.  They get the water they need from the food and plants that they consume.  Very handy for desert animals.
105354
the first response is mostly correct, fish have air bladders and most benthic fish (bottom dwelling) rarely leave the tremendous depths that they live in.  think about a whale which breathes air as we do, they can dive to well beyond the crushing depths of submarines, yet they have no problems with going up and down the water column all the time. they physics behind this are simply, they are adapted to their environment, whcih is the case of whales is both the surface and the lower levels of the ocean. \n\nwhales are a fascinating case, they are able to collect the dangerous by-products of deep diving in their bodies, either through air bladders and special ability to remove toxic gasses from their blood, but they are essentially mammals like humans; obviously you know they breathe the same air we do.  interesting question.  please read more about the ocean if you are interested click the link
1101479
Yes - the food you eat also contains water.
19922
Fish eat other fish. Bigger ones eat smaller ones. In the case of a whale, notice its strainer type mouth? They take in large quantities of Crill which are very small shrimp. Others feed by sucking plankton or moss off rocks (thus cleaning). Others by snatching flying or swimming bugs off the surface.
520418
have'nt you heard when it rains a lot the rain washes the food to the fish and they want bite.
680740
if its called a fish of any kind it has gills
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.
234715
Sure, bobcats drink water. We have them here in NC, but we don't have any cacti. I would guess that they drink from a puddle or creek or something like that.
667467
ANY KIND OF ANIMAL WITH GILLS, SHARKS, FISH, ETC. I GUESS..
967973
It can be sucked in through the gills but it gets spit back out that way as a fish normally breathes.  The natural flow of water through the gills is due to swimming in that direction - the water naturally flow in the direction front to back.  Its not benefitting the fish to suck it in that way.