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Horse Evolution Timline
Transcript of Horse Evolution Timline
This is the first horse that has been found. It scientific name is Hyracotherium leporinum. It is extinct, however we can see some similarities with the present species of horses. The skull has similar structure towards a head of a fox which may have a influence on another species and it's tail is similar to a donkeys. This species is around 50 millions years old. It would eat berries and leaves. A major difference between the modern horse and this one is that this horse had toes. It had four toes which where used as feet. It was around the size of 10 - 20 inches big, which was a fully sized Eohippus. This was the start of many generations and was the beginning of the horse timeline.
Merychippus lived around seventeen million years. Compared to the Mesochippus, The Merychippus was around one meter longs, which was a great feature that had evolved. Also, it still has the three toes which means the environment they lived in must of had need them, However it began to grow a hoof. They still have the same shape, however the Merychippus was bigger and much more broad like the modern horse. The main feature that made up this species of horse was how the mouth was deeper and the eyes where push back because of the mouth. This was the beginning of this feature which is still seen today in the modern horses.
Pliohippus lived around 10 - 15 million years ago which isn't that far away from today if you think about it in a evolutionary aspect. Known as the 'Grandfather' of the Epuss, this species gradual loss the two side toes and focus on the main hoof. Pliohippus was very similar to the modern horse, Equus, and until recently, thought to be the direct ancestor. However there were some major differences such as, the Pliohippus has a deep face, but the Equus doesn't. Also the teeth on the Pliohippus are strongly curved while Equus’ teeth are very straight. But on the other hand, the similarities would have to be the shape and strength of these species.
The Equus Ferus known as the 'Modern Horse' is the species of horses that our generation is able to see. This species is over 163cm tall and range in size. This is the result of the Eohippus. If we had gone back into time we wouldn't of had realised what a difference or big evolution there was between this horse and the first one. What makes this type of horse so wonderful is that it doesn't have toes anymore. Its relies on the one hoof on each foot. The jaw has extended much further out and the eyes are almost on the side of its head. We are ale to see different types of colours in the horses, showing the different species. This species has high-crowned, straight, grazing teeth with strong crests lined with cement.
Horse Evolution Timeline
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By Jarod Gauci 10 WO
The Mesohippus lived around 40 - 30 million years ago. Mesohipppus was the scientific name and Three-toed horse was the common name. The size of it was around 60 centimeters which was a big improvement compared to the Eohippus. Like the Eohippus, it is also extinct, however a major difference between these horses is that this horse had only three toes, which meant the species had reduced a toe over a period of 10 - 20 million years. It is also called the 'middle horses' referenced by its position. This horse has slight details which allow us to see the similarities with the horse we have seen such as the body build and also the legs had much more muscle than the Eohippus.
What Evolution is and Why/How it
Evolution is history behind a species. It shows how the specific species was inherited and what other species come from the same family. It shows how different species where once one type of species and how that impacts how we as humans are today. Evolution shows the characteristics that a species develops in order to survive. Its a process where different types of living organism are believed to have developed from earlier forms during the history of the earth. It occurs because it increases the chance of survive for the specific species. If there was no evolution, nothing would change. Nothing would strive and thrive on earth. It will all be the same. It occurs when a specific species adapts to their environment passing on survive benefits to the next generation to help them survive. But it doesn't happen overnight. It takes million of years for a evolution to occur.