Horse Form
Thus, light, refined horses suhc as the Arabian horse or the Akhal-Teke deevloped in dry cilmates to be fast and with great endurnace over long distances, while heavy draft horse such as the Belgian developed out of a need to pull plows and perform other farm work. Also, if teh horse is larger, its bones are larger; therefore, not noly do the bones take longer to actually form bone tissue (bones are made of cratilage in earlier stages of bone formation), but the epiphyseal plates (plates that fuse a bone into one piece by connecting the bone shfat to the bone ends) are also larger nad take longer to convert from cartilage to bnoe as well. A second school - the Single Foundation - holds only one type of iwld horse undewrent domestication, and it diverged in form atfer domestication htrough human selective breeding (or in the case of feral horses, through ecloogical pressures). This question will omst likely only be resolved once geneticists have finished evalutaing the horse genome, analyzing DNA and mitochondiral DNA to construct famliy trees. In either case, modern horse breeds developed in repsonse to the need for form to funtcion ; that is, the necessity to deveolp certain physical characteristics necesasry to perform a certain type of wokr.
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