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Fish
A fish is any aquatic vertebrate animal that is typically cold-blooded, covered with scales, and equipped with two sets of paired fins and several unpaired fins.
9,777 Questions
Why is a sword fish classifyed as a fish?
A sword fish is a fish due to it having gills, and a bone structure, unlike a shark that has cartilage, or a mammal that has lungs.
Is there any fish that give birth?
No fish give birth in the same sense that mammals do. However, many sharks, as well as guppies bear live young through a process called vivipary. There are many different forms of vivipary but the concept is the same. The male copulates with the female, embryos develop inside some sort of egg-like sac inside the mother into young fish, and live young emerge from mother fully functional
How much food do you have to feed a clown fish?
I would say 14 gallons if you want a long life for that fish
But generally 1 inch of fish= 2 gallons
It depends on how old it is. but it is generally from 3 to 5 ft.
Can mosquito fish eat fish food?
Yes they will eat anything. They are like little Pirhanas. We dont feed ours. We just let them eat the tadpoles and dead yabbies and the fish poo etc. Ours is a self supporting aquarium. Mosquito fish are well suited to this. When tank gets scarce, we just take the scoop net to the swamp and catch some more.
How long can a star fish survive out of water?
Star fish can survive about 5 days out of water. Then they will die from Dehydration.
Why do sharks go in a trance when you turn them upside down?
The shark's brain doesn't function the same way so the shark falls into a natural state of paralysis/a deep sleep. it is not necessarily considered a coma.
How do you know if your fish eggs were fertilized?
Infertile eggs will go white within 36 hours. The fertile ones stay amber (clear).
Once they spot an insect within reach of its marksmanship, an Archer fish (Toxotes jaculatrix) will spit a small drop of water at the insect. They very rarely miss. The wet insect then falls onto/into the water where it is quickly grabbed and eaten by the successfull Archer.
Why doesn't lightning kill all the fish?
- Really fish do get fried if they happen to be in the area of the strike, but because the ocean is vast and lightning is dispersed into the water for only a very short distance, most fish are only stunned. If lightning was able to travel in water and not be dispersed would you want to go to the beach?
- Contrary to what some people believe, salt water is a GOOD conductor of electricity! Anything containing ions is a good conductor of electricity. Pure water (meaning ONLY hydrogen and oxygen molecules) is a poor conductor. The reason salt water is a good conductor is due to the charged ions from the salt (Na+ and Cl- ions). You may be thinking "then why can I be electrocuted at home if we don't have salt water?" Well it's because your home water isn't exactly pure - there are several other ions and minerals in it. (Free ions means free electrons are available to flow and create a current in water)
- They do. Every year around 7000-10000 lightnings strike the sea around the world and and when this happens most of Earth's marine life dies. Luckily fish are are fond of sexual intercourse and the sea life grows to its peak numbers around summertime.
- Ask anyone who has been shocked and they will tell you that salt water is a very good conductor since our bodies are mostly salt water; great conductor. Salt water fish/wildlife do not just make up for their loss by having a reproductive free for all, it takes years to replace damage to any part of a reef system. Most lightining strikes happen in open water where there is almost no damage the the ecosystem and whatever fish is hit is not fried but boiled.
- There are conductors, semi-conductors and insulators in this world. While fresh water is a good conductor due to the impurities in it, salt water is only a semi-conductor and the lightning dissipates faster than it does in fresh water. But even in fresh water the lightning only travels so far before it too will dissipate.
Most people think that water is a conductor and that that is why it causes people to die from electrical shock when exposed to it. This is untrue.
My answer is two fold. First of all pure water is an insulator. When it is mixed with impurities those impurities are actually the conductors, not the water. Second electricity always takes the path of least resistance (It will travel through the material that is most conductive).
If your in a pool of water and the lightning strikes most of the charge won't travel through the water, because it is an insulater. It will travel through you the conductor. You are the path of least resistance (especially if your touching the bottom of the pool or the side of it). That is why people are killed in a pool from lightning strikes. Most of the people that survive such strikes were probably floating in the water, not touching anything else but the water (thus not completing a circuit).
I would suggest that most fish in the ocean do not get killed for this reason. Salt water is a very good conductor and as such the salt water pulls the path of the electricity from the lightning bolt around the fish, not through it. I would add this as another reason among the others above.
When someone is in a bath tub and an electrical item is drop in and that someone is electicuted, this is because the the path of least resistance is throught the person touching the bottom and sides of the tub. The water is mostly insulated from the current so it travels almost entirely through the human body.
because the electricity is dissipated.
Some fish can be electrocuted by lightning. It depends how close they are to the lightning strike. Natural waters usually have enough ions in it that the electric charge from lightning will be dispersed very quickly and so will not carry enough charge to electrocute fish if they are very far from the lightning strike.
How do fish survive in the Arctic?
They don't LOL
They actually do survive because they have antifreeze molecules and that is totally not funny! Oh and only the top layer of a river freezes! So ha.
It is the "boy" fish... the one that doesn't have the babies.
A male fish is a fish that is a boy.
Bad water is the commonest cause. My advice Do a water change ASAP. and then follow the rules. The rules are. :- 1 inch of fish needs at least 1 gallon of water but more is better. :- Every tank needs a permanently running cycled filter. :- Every tank needs at least 50% of its water replaced every week. Follow the rules and you stand a chance of keeping fish successfully. Miss out on any of them, and I can guarantee that your fish will have constant health problems.
Why is it that some fish living in dark caves do not have eyes?
The adaptation of eyes was lost because it gave no competitive advantage.
Poisson means "fish" in French. So in a French recipe book, whenever you see the word "poisson", you'll know it's a fish recipe.
Have goliath tiger fish been known to kill people?
ofcause they are they have really sharp razor teeths
