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Friday, December 29, 2017

Interesting And Amazing Facts About Fishes

Interesting And Amazing Facts About Fishes (List 1) ( Interestingawesome.blogspot.com)

Fishes are cool, and amazing creatures. Some of them can be very friendly, while some of them can be vary dangerous. Its mind blowing to think about the multitude of fishes that exist in this world. From the tiny fish to the great blue whale, each fish possesses a unique quality that makes it stand out from the rest. It can be their behaviors, physical appearance, their colour, shape and many more. Generally, Fish are vertebrates which live in water and respire (get oxygen ) with gills . They lack limbs with digits (fingers & toes). This is a definition which does not quite work, some amphibia also live in water and have external gills, but they are not fishes. So, Here are some interesting  facts about fishes that will blow your mind.

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  1. Fish or fishes?( This is a fact that you must know). Though often used interchangeably, these words have different meanings. Fish is used either as singular noun or to describe a group of specimens from a single species. Fishes describes a group of different species.
  2. Most fish reproduce by laying eggs, though some fish, such as great white sharks, give birth to live babies called pups.
  3. Some fish live in salt water, such as halibut and cod. They live in oceans and seas . Freshwater fish, such as trout and catfish, live in lakes and rivers .
  4. A group of fish called the lungfish have developed lungs because they live in rivers and pools which dry up in certain parts of the year. They burrow into mud and aestivate until the water returns. It secretes a mucus cocoon and burrows itself under the unbaked earth. It takes in air with its lung through a built-in breathing tube that leads to the surface. A lungfish has both gills and a lung.
  5. The oldest known age for a fish was an Australian lungfish. In 2003, it was still alive and well at 65 years old.
  6. Starfish are not fish. Neither are jellyfish.
  7. Seahorses are the only fish that swim upright. Also the slowest fish is a seahorse. It swims so slowly that a person can barely tell it is moving. The slowest is the Dwarf Seahorse, which takes about one hour to travel five feet. It even looks like it is simply standing up, not swimming.
  8. A seahorse can move each of its eyes separately. One eye can look forward while the other looks backward. Seahorses can also change their color to match their surroundings
  9. Fish have a good sense of taste, sight and touch. They can feel pain.
  10. A discovery of ancient bone fishhooks in 2011 in East Timor show that humans have been fishing for at least 40,000 years.
  11. The biggest fish in the world is the giant whale shark which can grow to a length of around 60ft.
  12. Most kinds of fish have bones . Some kinds of fish, such as sharks and rays , do not have real bones (their skeletons are made of cartilage ) they are known as cartilaginous fish .
  13. Fish can swim slowly for many hours using red muscle fibres. They also make short, fast bursts using white muscle. The two types of muscle have a fundamentally different physiology. The red fibres are usually alongside a much greater number of white fibres.
  14. Using their white fibres, fish can reach speeds of 10 lengths per second for short bursts while using their red fibres, fish can keep up a speed of 35 lengths per second for long periods.
  15. Most fish are ectothermic ("cold-blooded"), allowing their body temperatures to vary as ambient temperatures change, though some of the large active swimmers like white shark and tuna can hold a higher core temperature .
  16. Some people keep fish as pets . Goldfish and Siamese Fighting Fish are popular types of pet fish. Koi and other ornamental fish are often kept by groups of people in public ponds for their beauty and calming nature.
  17. Eels can swim backwards. Most other fish cant and Jellyfish have no backbones so are not fish. All fish are vertebrate. Seahorses are fish.
  18. Electric eels and electric rays have enough electricity to kill a horse.
  19. There are more species of fish than amphibians, reptiles, birds and mammals combined and Sharks are the only fish that have eyelids.
  20. Most brands of lipstick contain fish scales.
  21. Anableps is the name of fish commonly known as four eyes. Actually they have only two eyes but each is divided by a membrane which lets it see above and below the water simultaneously.
  22. Anableps bear live young but can only mate on one side. Left-handed males can only mate with right-handed females.
  23. The blue whale weighs as much as thirty elephants and is as long as three Greyhound buses. In other word they are about 35 m (115 ft) in length and weighing incredible 150 tones.
  24. The blue whale has a heart the size of a small car and its blood vessel is so broad, that a person could swim through it.
  25. Fish have sleep-like periods where they have lowered response to stimuli, slowed physical activity, and reduced metabolism but they do not share the same changes in brain waves as humans do when they sleep.

What do you think about these fish facts? Do you have pet fishes? We are glad to know about your views about these fish facts in comment section.

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