few centuries ago
It is difficult to overestimate the importance of horses in the development of human society over the past 5,000 years
In human life, it played a more important role than any other domesticated animal. Shortly after the domestication revealed the true nature of the horse – it has become indispensable in the field, in transport, in war. Previously, horses had to work not only on land but also under the ground. It was usually a pony.
In England alone, there were nearly 16,000 of these trouble-free workers. About 3000 hours a year dragged a small horse heavily loaded trolley, carrying up to 3000 tons per year and overcoming almost 5000 km. For this work, they preferred to use small Shetland island ponies, because they could carry cargo 20 times more than their own weight. Continue reading
It is known that at a temperature of about +40.5 * C the brain perishes.
But at the same time the body temperature of the horse during the race reaches 45-46 * C.
How so? Animals capable of rapid movement usually have an extensive network of arteries that cools the blood warmed by the load before it enters the brain. However, the horse does not have such a device. What protects the horse’s brain? Continue reading