Search results
Results from the WOW.Com Content Network
Reconstruction, left forefoot skeleton (third digit emphasized yellow) and longitudinal section of molars of selected prehistoric horses Skeletal evolution. 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, [1] forest-dwelling Eohippus into the ...
The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. Dates in this article are consensus estimates based on scientific evidence , mainly fossils .
Edward Hitchcock's fold-out paleontological chart in his 1840 Elementary Geology. Although tree-like diagrams have long been used to organise knowledge, and although branching diagrams known as claves ("keys") were omnipresent in eighteenth-century natural history, it appears that the earliest tree diagram of natural order was the 1801 "Arbre botanique" (Botanical Tree) of the French ...
There was something special about this horse: It had a genetic mutation that changed the shape of its back, likely making it easier to ride. “In the past, you had many different lineages of ...
History of the horse in Britain; History of the horse in the Indian subcontinent; Horse culture in Mongolia; Horse name; Horse symbolism; Horses in Brittany; Horses in Cameroon; Horses in Cuba; Horses in East Asian warfare; Horses in Jamaica; Horses in Slovenia; Horses in Sudan; Horses in the Napoleonic Wars; Horses in the United States; Horses ...
Evolution of cetaceans; Evolution of horses; Evolution of primates – Origin and diversification of primates through geologic time Evolution of humans – Evolutionary process leading up to the appearance of anatomically modern humans Evolution of human intelligence; Human evolutionary genetics – Study of differences between human genomes
Equidae (commonly known as the horse family) is the taxonomic family of horses and related animals, including the extant horses, asses, and zebras, and many other species known only from fossils. The family evolved more than 50 million years ago, in the Eocene epoch, from a small, multi-toed ungulate into larger, single-toed animals.
The height of horses is measured at the highest point of the withers, where the neck meets the back. [23] This point is used because it is a stable point of the anatomy, unlike the head or neck, which move up and down in relation to the body of the horse.