12월, 2018의 게시물 표시

the first human race part2

There was a severe climate change in the world 1.7 million years ago.
As the ice age continues to drop and the interglacial period continues to rise again, the height of the sea has changed and the appearance of the continent has changed.
Then Homo erectus, who lived on the African continent, began to move to other areas.
As the climate changed, the place where the sea used to be changed to land and began to move.  With the climate change, the place that used to be the sea changed to land and a way to move. 
The number of Homo erectus has increased, and we need a new place to live.
Homo erectus left the African country in a group.
Homo erectus headed for Europe and Asia.
Europe and Asia were colder than Africa when Homo erectus arrived.
But Homo erectus did not have a problem living.
Homo erectus quickly adapted to cold weather because he knew he would use fire.
It took Homo erectus a long time to move to different parts of the world.
The Homo erectus fossil was found about 500,000 ye…

the first human race part1

In 1974, there was an incident that caused a stir in the world.
They found fossils of humans in Ethiopia on the African continent.
There were traces of human bones that lived about 3 million years ago standing on two feet  People began to get excited and named Lucy on this fossil.
Lucy was 110 centimeters tall and weighed about 30 kilograms.
Tauung's baby, which was found before Lucy, was also a double-footed fossil.
People called all fossils such as Lucy and Tauung's baby Australopithecus.
                                        this is Australopithecus

Human beings have undergone many changes as they walk on two feet.
First of all, the speed was lower than when I walked on four feet, but it was much easier to walk so I could go far. The other two hands were free to make tools by cutting branches or breaking stones. Since then, mankind has begun to make and write tools, and this human being was called Homo habilis, which means he is particularly talented.

Nighting Gale

British nurse established the notion of nursing as we know it today.
Nightingale was born on May 12, 1820 to a wealthy Englishman living in Florence, Italy.
He was born on a special mission when he was sixteen years old
I began to take care of the poor and the suffering because I had a mission to help others. However, as family opposition did not allow me to do health service in hospital, I went to Kaisersberg, Germany. This is a Protestant school with nursing training, where Nightingale began his independent life. Later, he studied in Paris and became a nurse at a women's hospital in London at the age of 33.
Nightingale and 38 nurses crossed to the Crimean Peninsula and took care of many wounded soldiers in an old barracks at Scutari Hospital in Turkey, where facilities were poor and dirty, and asked for help from the British army.
At this time, Nighting Gail became so famous that when she got a fever during the war, Queen Victoria was worried. The success of Scutari was widely r…

Butterfly hibernation and butterfly protection

Butterflies cannot function in cold weather. So I sleep in the winter or move to a warm area.  In winter, many species hibernate in a concealed place.
Butterflies can sleep during any stage of the winter.
But usually, depending on the species, glycol is produced in the blood just before hibernating at one stage.  Glycol is similar to the antifreeze used in cars, allowing it to survive the intense cold of insects. As the climate warms up, glycol is gradually replaced by normal blood. Some species of butterflies migrate to warm areas in winter to avoid the cold.  Monarch butterflies travel more than 3,000 kilometers in large groups.
Some butterflies have become rare because people catch too many, but most of them are disappearing because of their natural habitat.
Many tiger butterflies are threatened, and Alexandra Vidanjevanabi in Papua New Guinea has become very rare due to the development of large palm farms.
In Papua New Guinea, the silk swallows attract eggs and raise larvae that a…

a butterfly defense

Butterflies are many enemies. Butterflies are other insects and birds.
Butterflies have developed a variety of defensive liquor to protect themselves from the enemy. Many butterfly growers and caterpillars keep themselves in tune with their surroundings to avoid enemy attacks. This type of defense is called protective coloring, and butterflies look similar to other plants. Most caterpillars are green or brown.
The green caterpillar matches the color of the plant.
Brown looks like dead leaves or branches. Many butterflies have protective chemicals.
Some tiger butterfly larvae release an odoriferous chemical in the organ right behind their head when they are surprised.
Some butterflies don't taste good when their enemies eat them.
They mostly eat bitter or poisonous plants during the larvae era.
This juice is stored in insect tissues and is tasteless when eaten by a predator.
For example, a Monarch butterfly caterpillar has a vivid color that tells it is not delicious.
These defense…

Nava's life history

Butterflies lead to reproduction. The reproductive cycle begins in courtship behavior for mating.  If the courtship is successful, they mate immediately.
Butterflies use their sight and sense of smell to find a mate.
Every female sends a specific signal or a unique sequence of signals.
You will be rejected by the other party when this signal goes wrong.
When a butterfly is wooed by its first signal, it reveals a certain color pattern in the correct order on its wings.  The scales on the butterfly's wings reflect ultraviolet light and send a visual signal.  A people cannot see this, but a butterfly can see it clearly.
The starting signal is used by butterflies to identify female numbers or different species.
A butterfly usually accepts a mate immediately when it smells something.
This smell is a chemical called pulmonary hormones that are released from special wing scales.  Pulmonary lemons attract people who are very far away.
Males usually die soon after mating and females lay eg…

What is leprosy?

Leprosy is caused by the infection of a lachronus called leprosy.
                                This is  Na Kyun germs.

A Norwegian doctor, Hansen, first discovered leprosy in a leprosy cell in 1873.
It is not known exactly how the fungus spreads, but there is evidence that it has been infected by inhalation of germs or skin contact with infected people.
Leprosy is not likely to develop in heredity or inborn, and people generally do not get infected even if exposed to leprosy. After exposure to leprosy, you will become immune.
The invention from infection involves the duration and amount of exposure to leprosy.
Very few people with weak immune systems get leprosy.
Symptoms of leprosy are specific three to five years after being reduced.
The main symptoms are white or red spots on the skin.  This area will be numb.
Also, the skin thickens and black lumps can appear in many parts of the body.
If not treated, the nerves will be severely damaged, and the hands and feet will weaken, caus…

a story about a moth

Moths have many enemies. For example, some bees lay eggs on or around the body of moth larvae.  The bee's larvae kill the moth larvae by sucking in the body fluids of the moth caterpillars.  Other predators such as spider bird puck eat worms.
Moths defend themselves in many ways. For example, some moths look like bark or leaves.  Other moths chase off predators with patterns resembling the eyes of big animals on their wings.  Some moths' larvae are tasteless or even poisonous to predators.  These caterpillars have clear patterns that predator can easily recognize.
The animal that has eaten the larvae will not eat other caterpillars that have similar patterns.  A moth is the production of silk.  For over 4,000 years in China, I have grown a silk moth.  The silk thread of a nail moth is used to unravel its cocoon.
Squeeze silk out of this silk thread. Moths also play an important role in the pollination of flowers.  Moths are extremely harmful to crops and forests every year.

the history of moth life

A moth is an egg larva pupa that undergoes 4 stages of development.
For each step, the moth changes its shape considerably, and this process is called a mutation.  Females usually lay eggs in summer or fall.
One at a time, or in a lump, there are more than a few to 18000 births.
Most are not more than 1 mm in diameter and are shaped like circles or oval.
Female beetles lay eggs in plants that caterpillars can eat.
Most eggs hatch within a week, and some species hatch next spring after laying eggs.
The larvae that are hatched from an egg are made up of 14 including the head.
A caterpillar has three pairs of legs in front of its body.
Most of them also have five pairs of paddles at the back of their bodies.
Caterpillars usually eat leaves of plants, and they also eat larvae of other insects.
Caterpillars vomit thread to make rugs and use it as stepping stones to crawl.
The larvae do several crushes while growing up, and this process is called breakup.

                             look l…

the life of honeybees

Honeybees originate from the eggs of the queen bee.
During mating, the male bee puts semen into the queen bee's body.
The semen contain sperm and the queen bee stores the sperm in a pouch at the end of her belly.  When a queen bee sows her sperm on an egg, the egg hatches and becomes a worker.  If you don't put sperm on an egg, the egg will become a beast.
The eggs hatch in three days and crawl out of the room as little worm-like caterpillars.
The worker bees grow into worms in about 21 days, and they take about 24 days to mature.  When the queen bee dies or becomes weak, the bee group needs a new queen.  Also, if an old queen and some bees leave to build a new house, a new queen is needed.   The worker bees feed this caterpillar only the royal jelly.
At the same time, other worker bees only feed on royal jelly for the queen to grow.
Avalley that will become a queen bee hatches and becomes a pupa after about 5.5.
She will be the queen bee in about 16 days.
The queen bee grows …