Whose babies can devour their potential siblings while still in the womb? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

Whose babies can devour their potential siblings while still in the womb? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

Whose cubs can devour their potential brothers and sisters in the womb?

Different types of sharks give birth to children in different ways. There are oviparous and viviparous sharks, as well as an intermediate option - ovoviviparous. In them, egg development and hatching of juveniles take place inside the lower expanded part of the oviduct, usually called the uterus. Some shark larvae may remain in the uterus after hatching and feed on unfertilized eggs.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

How does a cricket sing?

The cricket has a special human affection. In many countries there is a superstition associated with this insect. So, for example, a cricket living in your house brings happiness, and if he leaves you, then this is a bad omen. In Italy, North Africa and Japan, crickets are kept in cages because people love listening to their fun tunes!

But the cricket doesn't actually sing. He is a violinist! It makes sounds by rubbing the sharp side of one prewing against the surface of the other. Only males play their tunes. They chirp all day, as they attract females with this music. Imagine what it would be like if boys played the violin all day to attract girls!

Crickets have sharp eyes that are located on their legs instead of their usual head location. Their antennae are very long, and their legs are specially adapted for jumping.

The domestic cricket (sometimes called the fireplace cricket) is an inhabitant of Europe. It was introduced to the New World many years ago and is now found in many parts of the United States.

It is a small insect, about 3 cm long, greyish-yellow in color with brown spots. He lives in residential buildings. Crickets love warmth and are often found near fireplaces, where they hide in cracks between rocks or floorboards. The field cricket is larger and almost black in color. He makes a small depression in the ground - this is his house. During courtship, the male perches at the entrance and chirps. There are also tree crickets. They especially like low tones in music.

Farmers are terrified of cricket larvae, as they eat the leaves of bushes, vineyards and trees on which they hatch.

Did you know that Chinese crickets are bred to fight each other in cricket fights and people watching them make bets on who will win?

Test your knowledge! Did you know...

▪ Does a sheep grow wool every year?

▪ What does the Dow Jones index show?

▪ What advice did Karl Marx give to future generations on his deathbed?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

Color vision of bats 03.04.2010

After studying the retinas of two species of bats from Central and South America, German physiologists came to the conclusion that these bats can distinguish colors.

Cones are found in the retina - cells that work only in good light and allow you to see color. There are two types of them: perceiving yellow-green color and sensitive to ultraviolet. The latter are needed to search for food - flowers with nectar (many flowers glow brightly with reflected light in the ultraviolet range).

The proportion of color-sensitive cells in the retina of bats is less than 4% (in humans, approximately 5,3%).

Other interesting news:

▪ Flexible Memory

▪ Airbus helicopter on green fuel

▪ Named the maximum life expectancy of a person

▪ Energy from the air will recharge the smartphone

▪ British nutrition is deteriorating

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Data transfer. Article selection

▪ article Cadmeian victory. Popular expression

▪ article Which waterfalls in the world are in the top ten in terms of average water flow? Detailed answer

▪ article Putorana Plateau. Nature miracle

▪ article Radio probe. Encyclopedia of radio electronics and electrical engineering

▪ article Working model of a steam turbine. physical experiment

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews