Mule Mule A mule is the offspring of a male donkey (jack) and a female horse (mare). Horses and donkeys are different species, with different numbers of chromosomes. Of the two F1 hybrids (first generation hybrids) between these two species, a mule is easier to obtain than a hinny, which is the offspring of a female donkey (jenny) and a male horse (stallion). The size of a mule and work to which it is put depend largely on the breeding of the mule's female parent (dam). Mules can be lightweight, medium weight or when produced from draft horse mares, of moderately
Peter the Great (horse) white star on his forehead and on the left hind leg a white sock. Peter the Great established the American Standardbred bloodline through the Hambletonian 10 offspring Happy Medium. During his life, Peter the Great covered thousands of mares. His tail-male pedigree was Pilot Medium/Happy Medium/Hambletonian. His tail-female pedigree was Santos by Grand Sentinel/Swallow by Joe Hooker/Dixie by Sam Johnson's horse/Dam by Cumberland. Peter the Great (horse) Peter The Great (1895–1923) was an American Standardbred horse. A descendant of Hambletonian 10, he is considered one of the most important sires in the development of the modern Standardbred breed. Peter the