Horse - the noble animal differing in long, rather thin extremities and having the one third finger protected by a hoof. She has grace, mind, beauty. Without this cattle any governor respecting himself in the ancient time did not represent the life. Today many oligarchs and stars consider it as honor to get two-three of thoroughbred racers.
Instruction
1. Eogippus Okolo 65 million years ago, during era of the early Eocene, there was an animal who scientists called eogippus (in a different way irakoteriya). He is considered the ancestor of a modern horse. Eogippus lived in the territory of present North America. The animal represented a low 30-50 centimetric individual with an arc-shaped back, the large head, a long tail. His forepaws were longer back and on them was located up to four fingers, back endings totaled only three. Eogippus lived in marshlands, and leaves, small animals and insects were his forage. After scientists investigated teeth of an animal and the similarity to horses in the form of cutters and molars is revealed, by them it was suggested that eogippus was an ancestor of a horse.
2. MezogippusSleduyushchim in a chain of evolution became mezogippus. He was a little larger than the ancestor, his parameters approximately corresponded to present fleet dogs. Mezogippus lived in forests, had three fingers standing, but side still reached the earth. He also ate rigid leaves which flat and low crowns of molars helped to fray to it.
3. MerigippusSredi of all predecessors of a horse, merigippus existed longer than the others. This animal resembled a modern horse already rather strongly superficially. Growth it in withers reached 90 centimeters. As well as his predecessor, for a merigippus had about three fingers on extremities. Teeth at an animal were already covered with bone enamel. Fine feeling – important line which unites a modern horse and her ancient ancestor. Both then and now it promoted safety.
4. Ankhiteriya, Ankhiteriya's gippariona - descendants of merigippus - were slightly higher than the ancestors, growth from a small pony. They lived also in America from where they in the subsequent migrated to Eurasia. The following link of horse evolution - an animal under the name gipparion. Low, but rather swift-footed horses, still had no hooves, as well as all their ancestors.
5. PliogippusyOkolo there were 5 million years ago pliogippusa which gradually began to force out endangered gipparion. Unidactyl horses similar with modern began to be settled across territories of Eurasia and Africa. According to scientists, mmenno from pliogippus all present types relating to family horse group one-hoofed such as zebras, Przhevalsky's horses, donkeys, horses went.