Photo: WWF

If climate change continues, the largest clothing size of future generations could be xs. Whether that will really happen, scientists assure will.

If we could revive the oldest horse found, and it is the species Sifrhippus sandrae that lived at the beginning of the Eocene, that is, 55.8 million years ago, we would certainly not take it to today’s hippodromes. He would most likely die there under the hooves of members of his species or under the feet of spectators. That oldest ancestor of today’s horses weighed about 8.5 kilograms and about ten centimeters. But, as things stand, the forecast is even more interesting in the future that under the influence of global growth of average temperatures, today’s horses, and people with them, as well as other mammals, will gradually decrease. Does that seem a little crazy to you, especially in today’s time of development of medicine, technology, mass production of food, when human species have become more long-lived than their ancestors?

Research by American paleontologists published earlier this year showed interesting changes in the size of warm-blooded animals, depending on climate change. Studying the remains of ancient horses found in North America, scientists found that their development was not at all linear. The horse weighed barely 8 kilograms in the Eocene, and then became even smaller and weaker. During this period, there was a high concentration of carbon dioxide, which led to an increase in temperature by 10 degrees Celsius. Scientists believe that this also affected the horse’s weight. And when the Earth began to cool, the average temperatures dropped to those similar to today, the animals became bigger and bigger, and grew to today’s sizes. This is the first important piece of evidence that temperature directly affects the size of a mammal’s body. This is certainly an interesting thesis at a time when we are recording an increase in average global temperatures, so we need to ask ourselves whether the confection number of today’s child will be enough for our descendants.

But the hypothesis is not new, because Bergman’s rule speaks of it, according to which smaller animals live in warmer climates, and larger ones in colder ones. This is the thesis of the German biologist Carl Bergman, who noticed that the same species of warm-blooded animals, populations with less mass and weight live in warmer regions, while populations of massive individuals of the same species were found further, in colder regions. This is due to the fact that large animals usually have a higher body weight and this results in higher heat production. Survival in the tropics requires the ability to release heat to the environment, and in colder regions to reduce that loss.

Does all this mean that under the influence of global warming, our descendants will use children’s ready-made numbers? Smaller human beings would eat less food, use less fertilizers and energy, and therefore produce less carbon dioxide.

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Source: E2 Portal by

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