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. It’s 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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- 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.
- Most fish reproduce by laying
eggs, though some fish, such as great white sharks, give birth to live babies
called pups.
- 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 .
- 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.
- The oldest known age for a fish was
an Australian lungfish. In 2003, it was still alive and well at 65 years old.
- Starfish are not fish. Neither are
jellyfish.
- 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.
- 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
- Fish have a good sense of taste,
sight and touch. They can feel pain.
- A discovery of ancient bone
fishhooks in 2011 in East Timor show that humans have been fishing for at least
40,000 years.
- The biggest fish in the world is
the giant whale shark which can grow to a length of around 60ft.
- 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 .
- 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.
- 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 3–5 lengths per
second for long periods.
- 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 .
- 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.
- Eels can swim backwards. Most
other fish can’t and Jellyfish have no
backbones so are not fish. All fish are vertebrate. Seahorses are fish.
- Electric eels and electric rays
have enough electricity to kill a horse.
- There are more species of fish
than amphibians, reptiles, birds and mammals combined and Sharks are the only
fish that have eyelids.
- Most brands of lipstick contain
fish scales.
- 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.
- Anableps bear live young but can
only mate on one side. “Left-handed” males can only mate with “right-handed” females.
- 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.
- 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.
- 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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