How tall are pygmies? Detailed answer

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How tall are pygmies? Detailed answer

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How tall are pygmies?

Pygmies - the shortest people on Earth - live in the equatorial forests of Africa. The growth of an adult male reaches only 125-145 centimeters. Pygmies live in isolation and leave the forest only when it is necessary to exchange the meat of wild animals for bananas, cassava or millet. In search of food, they often move from place to place, but never go beyond their forest patch. Pygmies live in huts made of palm leaves. Until recently, they did not know how to make fire.

Pygmies live by hunting and gathering, and, owning only primitive weapons, they successfully hunt the largest animals, even elephants. Sometimes pygmies use poisoned arrows with curare poison, but most often they attack sleeping animals. Elephant hunters are highly respected. Only the most respected men are honored to taste the meat from the trunk. Pieces of meat are given to neighboring tribes as a sign of friendship and respect.

Women and children collect fruits, edible plants. All prey - both meat and plants - is divided equally among the families of the community.

Author: Cellarius E.Yu.

Random interesting fact from the Great Encyclopedia:

What is the most dangerous animal that has ever lived on our planet?

A good half of the people who have died in the history of mankind - something like 45 billion - were killed by female mosquitoes (males only bite plants).

The mosquito (or mosquito) carries over a hundred potentially deadly diseases, including malaria, yellow fever, dengue, encephalitis, filariasis, and elephantiasis (elephantiasis). Even today, every twelve seconds, this insect kills one of us.

Amazingly, until the end of the 1877th century, no one could have thought that mosquitoes were so dangerous. It wasn't until XNUMX that Dr. Sir Patrick Manson - also known as "Mosquito" Manson - proved that elephantiasis was caused by mosquito bites.

Seventeen years later, in 1894, Manson had the idea that mosquitoes might also be the cause of malaria. He invites his student Ronaldo Ross - at that time still a young doctor practicing in India - to test this hypothesis.

Ross was the first to show how a female malaria mosquito transmits the Plasmodium parasite through her own saliva. He tested his theory on birds. Manson outdid the student. To demonstrate the work of the theory, he infected his own son - using malarial mosquitoes, which he brought from Rome in diplomatic luggage. (Fortunately, after an immediate dose of quinine, the boy recovered.)

In 1902, Ross received the Nobel Prize in Medicine. Manson is elected a Fellow of the Royal Society and knighted. He also becomes the founder of the London School of Tropical Medicine.

To date, 2500 species of mosquitoes are known, 400 of which are members of the Anopheles family, and 40 of them are capable of transmitting malaria.

Females lay their eggs in water and use the sucked blood to mature them. The eggs hatch into aquatic larvae, or pupae. Unlike most insects, mosquito pupae, also known as "twitchers", are very active and can glide through the water quickly.

Male mosquitoes buzz in a higher tone than females and can be tempted by a common tuning fork that produces a si note.

Female mosquitoes are attracted to moisture, milk, carbon dioxide, body heat, and movement. Sweaty people and pregnant women are much more likely to be bitten.

In Spanish and Portuguese, the word mosquito means "small fly".

Test your knowledge! Did you know...

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Add Magnesium to the Car Body 04.01.2006

Thin rolled steel, from which car bodies are made, is coated with a layer of zinc to protect against corrosion.

Engineers from the Dortmund Center for Surface Physics (Germany) found that it is possible to significantly enhance the anti-corrosion properties of such a coating if magnesium is added to zinc.

In a pilot plant built at the Dortmund Center, a 7-micrometer-thick zinc-coated steel strip passes at a rate of meters per second through a vacuum chamber where magnesium vapor is blown over it. Locks are installed at the entrance and exit of the chamber, the air from which is pumped out by powerful pumps so that it does not penetrate into the chamber. Zinc is covered with a layer of magnesium a few nanometers thick. After additional heat treatment, magnesium atoms diffuse into the zinc surface. The resulting layer is more than ten times more resistant than conventional zinc coating.

In a special chamber, where a fog is created from a five percent solution of common salt (imitation of conditions on a winter road), galvanized steel after five days of stay is almost completely covered with rust.

Magnesium-zinc coating shows the first signs of corrosion only after 50 days. The work is funded by German automotive firms.

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