With the mannerisms of a deer and the traits of a dog, the first known horse darted through forests in North America during the Eocene Period. Fossils of the first known horse were found in , and were initially called Hyracotherium leporinum. In , a full skeleton of it was found in North America by Othniel Marsh. Many believe it was the ancestor of modern…. Theory Alicia Horsfield Evolution can be defined as a gradual process in which a species changes into a different and more complex form. This happens over several generations.
The Origin and Evolution of Horses
Evolution of the horse
The evolution in the structure of their teeth, odd-toed limbs, obvious mobility of the upper lip, and other aspects, joins the horse to the evolutionary line of odd-toed, hoofed mammals: the Perissodactyls. The tapirs and rhinoceroses remained adapted to their original style of life, conserving forms suitable for life in tropical forests, but the evolutionary line of the horse mainly adapted to life on dryer land in the much-harsher climatic conditions of the steppes. Reference Terms. Related Stories. The new findings offer insight into mammal tooth evolution, particularly Researchers also found evidence that prehistoric horses fed along the
The Evolution of a Horse Essay
As more and more horse fossils have been found, some ideas about horse evolution have changed, but the horse family remains a good example of evolution. In fact, we now have enough fossils of enough species in enough genera to examine details of evolutionary change. Evolution does not occur in a straight line toward a goal, like a ladder; rather, evolution is like a branching.
The evolution of the horse , a mammal of the family Equidae , occurred over a geologic time scale of 50 million years, transforming the small, dog-sized,  forest-dwelling Eohippus into the modern horse. Paleozoologists have been able to piece together a more complete outline of the evolutionary lineage of the modern horse than of any other animal. Much of this evolution took place in North America, where horses originated but became extinct about 10, years ago.