Wild Science

21/02/2020

Flowering plants have much smaller genomes than ferns, conifers and other types of vegetation — and that could be why they make up more than 90 percent of all land plant species. Their compact DNA allowed flowering plants to have smaller cells, which in turn let them become highly efficient at photosynthesis.
https://www.quantamagazine.org/with-downsized-dna-flowering-plants-took-over-the-world-20180111

26/11/2019

Remembering the man who discovered how nerve impulses are exchanged between cells,
Huxley
The nervous system in people and animals consists of many different cells. In cells, signals are conveyed by small electrical currents and by chemical substances. By measuring changes in electrical charges in a very large nerve fiber from a species of octopus, Huxley together with Alan Hodgkin were able to show how nerve impulses are exchanged between cells.

In 1952 they could demonstrate that a fundamental mechanism involves the passage of sodium and potassium ions in opposite directions in and out through the cell wall, which gives rise to electrical charges.

Huxley and Hodgkin were awarded the 1963 Nobel Prize in Physiology or Medicine for their discovery.

25/10/2019

Spallanzani showed that some animals, especially newts, can regenerate some parts of their body if injured or surgically removed.

Spallanzani researched in 1768 the theory of the spontaneous generation of microbes. At the time, the microscope was already available to researchers, and using it, the proponents of the theory, Buffon and Needham, came to the conclusion that there is a life-generating force inherent to certain kinds of inorganic matter that causes living microbes to create themselves if given sufficient time. Spallanzani's experiment showed that it is not an inherent feature of matter, and that it can be destroyed by an hour of boiling. As the microbes did not re-appear as long as the material was hermetically sealed, he proposed that microbes move through the air and that they could be killed through boiling.

19/10/2019

The first green rose we met was born from a mutation of Rosa chinensis (the rose bush of China) at the end of the 17th century. It was introduced to the European market in 1856 by the British nurseries Bembridge and Harrison.

The flowers of this rose are very particular, with a perianto formed by many sepals of light green toothed green leaves, replacing the missing petals. These sepals of color acquire a brown hue over time.

The size of green roses is medium, about 5 cm in diameter, and they are usually grouped in clusters. Flowering is climbing and lasts until the first frosts. The rose bush is an erect shrub one meter tall and long, bright bright green foliage, with traces of red on its leaves

14/08/2019

Crookes was the inventor of the Crookes radiometer,He used this pump to withdraw air from sealed glass tubes. Crookes observed that the negative electrode (the cathode) gave off a stream of charged particles. He discovered the element Thallium, and developed a chemical process for separating gold and silver from their ores.

09/08/2019

They are able to conserve energy by reducing their metabolism to approximately 1 / 15th of normal speed. During a normal period of time your heart will beat more than 1,200 times per minute, hummingbird wings can move up to 80 times per second. When is trying to impress a female, the beating of its wings can increase up to 200 times per second.The nature is great!😍

08/08/2019

The panda ant is a species of hymenoptera insect of the Mutillidae family. Its head has white hairs, and the rest of its body is black and white. The appearance resembles that of the panda and hence its name

04/08/2019

This is how the mitosis of kidney cells with fluoresence looks,

At 18 seconds of the vidio you can appreciate the formation of a cell, in this case it is due to the presence of an extra centriole which leads to the formation of additional mitosic zones that pull the chromosomes in several directions forming 2 cells, one of them with two CORES. This phenomenon is commonly observed in cancer cells,
Mitosis corresponds to the last phase of the cell cycle and culminates witth the formation of two daughters cells. This normal cells event takes approximately 15 minutes,

03/08/2019

It reappeared !!!! In Taiwan they discover a species of leopard called "cloudy leopard" that was «extinct» 😁

02/08/2019

that's what a skeleton of a hedgehog looks like😮

02/08/2019

that's alot of work for something that will be eaten by a bird in about 20 mins.

02/08/2019

is a spiny nocturnal mammal that hunt at nigh time . it feed on snakes ,scorpions and other insects like Moth etc . when The snake and scorpion bite it the venom donot affect on it because it is immunized against its venom.