Their is an air chamber in most fishes just like in submarines.
When it gets filled with air the fish moves up.
While, when air is released the fish moves down.
This is precisely what happens in a submarine.
eating other fishs
Perhaps the question should be, "How is a submarine like a fish?" because fish came first, and people copied their idea. Some fish have a bladder to vary their buoyancy, just as a submarine does with its ballast tanks. Also, shape makes a difference. Elongated fish and submarines; those with a higher length-beam ratio like Barracuda are very fast, but the shorter and fatter ones like goldfish have more maneuverability in a hydrodynamic environment.
The majority of bony fish has swim bladder that keeps them buoyant. The organ is also called gas bladder, fish maw, or air sac.
The urinary bladder is situated behind the Vent (Anus) on the fish. Just as it is on humans, it is there to release any unwanted waste from the body. Fish have two bladders, one is a swim bladder and the other is the urinary bladder. Do not get these mixed up. The swim bladder allows the fish swim in different densities of water and the urinary bladder is to pass urine. Fish do not use urea to get rid of their nitrogen like mammals do, but instead use NH3 Ammonia.
Predators of X-ray fish include larger fish, birds, and mammals that prey on smaller fish in their habitat. These predators rely on their keen senses to detect and capture X-ray fish as a source of food.
Increases the fish's volume by filling the swim bladder with oxygen.
The similarity lies in their use - the control of buoyancy.
chalk goby
Many fish eat their own newborns.
His fish are named Brock and Swimmy
what do fish eat
Swim bladder disease can be painful for fish as it affects their ability to swim and maintain balance in the water. This can cause discomfort and stress for the fish.
no because fishs are too big for them
eating other fishs
fish breathe eat and move just like we do
aren't fish eggs called caviar?
Paranah