Why did dinosaurs become extinct? Detailed answer

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Why did dinosaurs become extinct? Detailed answer

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Why did dinosaurs become extinct?

Approximately 180 million years ago, reptiles, or reptiles, reigned supreme on our planet. There were so many of them and they had such incredible power that that period is known as the "era of lizards". Scientists call it the Mesozoic era.

The largest of the reptiles were dinosaurs, some species of which were, apparently, the largest animals that ever lived on Earth. And yet, despite their amazing power, about 60 million years ago, dinosaurs died out, as changing living conditions made their continued existence impossible.

The first dinosaurs were probably no larger than a turkey, and, like turkeys, they leaned on two legs when walking. Over time, they grew larger and heavier, until finally their legs were unable to support them on dry land. Therefore, dinosaurs began to spend a significant part of their time in rivers and swamps, where the water kept their huge bodies afloat. One of the most gigantic lizards were brontosaurs. The growth of these animals reached 20-25 m, and the weight was 38 tons. However, some of the lizards still remained on land.

For example, a tyrannosaurus is a monster 14 meters long and 8 meters high with a powerful heavy tail and a terrible huge mouth. Most likely, the tyrannosaurus rex was the largest and most ferocious predator in the entire history of the Earth. Some dinosaurs learned to fly, others to swim. However, none of them developed large enough brains. Perhaps for this reason, dinosaurs disappeared from the surface of our planet, as they "did not have the mind" to adapt to the changed living conditions.

Most scientists are inclined to believe that it was global climate change that led to the death of huge pangolins. The swamps gradually dried up, and the dinosaurs could not live on land all the time, moreover, the newly formed mountain ranges prevented their migration to other regions. In addition, climate change also transformed the plant world, and since many of the dinosaurs ate plant foods, they simply died of hunger!

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What are the causes of baldness?

There are many different causes of baldness. But in most cases, a person cannot control this process. There is no simple cure for baldness. People name various causes of baldness: aging, unusually high intellectual development, or, conversely, stupidity. But the real cause of baldness is that a person loses their hair!

Structural alopecia is the most common. Hair begins to fall out at the temples or at the crown. Baldness can also appear in other places. This is the most difficult type of hair loss. Nothing can be done about it, as it is a hereditary trait. The inheritance of structural baldness varies by gender. Baldness is more common in men than in women. Very often, women carry the gene that controls baldness and pass this trait on to their children. When this type of baldness shows up, the best thing for a person to do is get used to it!

In men, premature baldness can appear by the age of 25 or even earlier. One of the reasons for such baldness may be the lack of proper care of the scalp, keeping it clean, etc. An imbalance of sex hormones can lead to premature baldness. Taking care of your scalp right away can slow down this kind of hair loss.

Baldness is sometimes a symptom of an illness or other condition. Once health is restored, hair can grow back. Sudden hair loss can occur as a result of typhoid fever, scarlet fever, influenza, or other serious illnesses.

Permanent hair loss or thinning may also be due to malnutrition or dysfunction of the glands, especially the pituitary and thyroid glands. And, of course, baldness can occur due to disorders of the scalp itself, its damage or disease.

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In August 1985, a conference was held in Prague at which scientist Pavan Bhartia demonstrated disturbing satellite images of the growing ozone hole over the South Pole. This caused numerous debates in the scientific community. As a result, on September 16, 1987, the leading powers of the world, concerned about this phenomenon, submitted a draft treaty known as the Montreal Protocol. This was an important step that marked the phase-out of substances that destroy the Earth's protective ozone layer.

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Today, the danger of ozone depletion has receded, and few people understand what threat was avoided. According to NASA scientists, if the use of ozone-depleting substances continued, the ozone layer would have thinned by more than 50% by today.

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