Fish

because it is dark in a cave, good eye sight is not required.

To smell the water and better protect themselves

Sea lampreys are jawless fish and, like all fish, they are vertebrates because they have a spine and spinal cord, and an internal skeleton. They belong to the Phylum Chordata.

Mammals, birds, fish, reptiles and amphibians are all vertebrates.

Depending upon the species of fish being farmed and the expertise and equipment being used by the fish farmers, some species are spawned and fertilised naturally and others have their ova and sperm stripped from the breeders by hand and these are then mixed together so that fertilisation can take place in small containers.

Yes. The gills absorb oxygen from the water. Some fish have primitive lungs and can breath air (walking catfish, lungfish). While still some other fish (beta, carp) can gulp air to augment gill breathing in oxygen depleted water.

This sounds like part of the 'mating dance' of livebearing fish. Mollies, like other livebearers, practice internal fertilisation - the anal fin of the male is modified into a tube, called a gonopodium, which he uses to place his sperm inside the female's genital opening. Male livebearers live to eat and mate; they harass the females a LOT in order to attempt to mate with them. Following her around incessantly, 'flagging' the gonopodium and nibbling at the female's backside are the ways he will try to get her to stay still for long enough to mate with her. In the absence of enough females, or when there is a receptive female in a small tank and the whole tank reeks of her, males will sometimes attempt to mate with each other. This is normal.

yes, the angler fish`s predator is the cod and congler fish.

Fish use all their fins in conjunction with one another to manouver in the water. They increase or decrease their depth (go up and down) in the water by inflating and deflating an organ called a "swim bladder".

I am guessing you wish to know about fish stocking rates. Its very simple really. The bigger the fish the more water it needs. The way it works is, 1 inch of fish needs a minimum of 1 gallon of water, every tank needs a cycled filter and every tank also needs to have at least 50% of its water changed every week. So a Goldfish (grows to about 10 inches) would need a MINIMUM of 10 gallons of water. A 10 gallon tank is not big enough because tanks usually have some kind of substrate (gravel base) and are never filled to the brim. A nominal 10 gallon tank would only actually contain about 7 or 8 gallons of water.

Black moors are goldfish but they tend to be a little delicate when it comes to water temperature. The right temperature for them is between 60F and 70F.

One word: Parasites.

Fresh water fish often have parasites that are dangerous even lethal.

Same reason you don't eat raw snails.

They have the rat liver fluke which goes straight to the human brain and eats it to the point of lethality in no time at all.

One word: Parasites. Fresh water fish often have parasites that are dangerous even lethal. Same reason you don't eat raw snails. They have the rat liver fluke which goes straight to the human brain and eats it to the point of lethality in no time at all.

The female lays her eggs on a plant leaf or stem and the male follows along after her and fertilises them. The parents then look after the eggs and the ensuing fry until they can look after themselves.

They have been known to sculpt glasses out of silt and clay found on the ocean floor, put the cups on their dorsal fin, and swim at the top of the ocean during rainstorms. They then take the cup full of rainwater, and enjoy!

Most Dwarf Cichlids, most Tetras, most Rasboras, most Corydoras, most Danios, etc etc. Basically Angelfish need a temp of around 78F a pH of around 6.8 to 7 and medium to soft water. There are hundreds of species that will enjoy similar conditions..Please remember that Angels are a large fish and 2 angels should have at least 30 galls of water to themselves (35gal tank). Always stick to the rules :-1 inch of fish needs at least 1 gallon of water. :- Every tank needs a permanently running cycled filter. :- Every tank needs at least 50% of its water changed every week. If you keep to the above rules, and feed the fish good food it/they will stand a chance of living a normal lifespan. If you fail in any of them I can guarantee that your fish will be constantly getting sick and will have a very short lifespan.

There are 1000 species of fish in the ras mohammaed national park.

It is in protein......(meat,FISH!!! and poultry !!!

It certainly is! ailment is called Icthyosis -fish disease, the skin looks like that of a fish. see a dermatologist pronto! Origins are unknown.

Of course all fish need oxygen even puffer fish....

One serving of grilled chicken is 150 calories, one serving of grilled fish (varies based on type) is between 80 an 150 calories.

Seals eat fish by mouths. Gills are not used fr eating,they are used for breathing underwater. U can't eat with gills.

A starfish sticks itself to different surfaces by its suction cups that spread out througout the entire species. All starfish have the unique feature of suction cups, this is how alll species of starfish have this feature.

No goldfish aren't cartilaginous. However cartilaginous are like sharks, rays and skates.

Actually yes you do how you may ask get a hard table or surface and smack the fish with all your strength against the Table GOOD LUCK..

The only good way to tenderize fish is to soak in milk for several hours

Fins have rigid bones that are called spines, although they are not connected to the actual spine. Rays are made of cartilage, not bone. Sometimes fins are called fin rays, but they are not true rays.

You need to get a fishing license when you turn the age of 12.