The lower-case letter Î³ {\displaystyle \gamma } is used as a symbol for: 1  Chromatic number of in graph theory. 2  Gamma radiation in nuclear physics. 3  The photon, the elementary particle of light and other electromagnetic radiation.  Surface energy in materials 1  science. The Lorentz factor in the theory of relativity.
The Social Hierarchy in Herds of Domestic and Wild Horses. Within the band there is a hierarchy with one mare co-leading the band. While the stallionâs role is to protect the harem from predators and other stallions; the dominant mare leads the band to shelter, food and water.
Following the government removal in the mid-1800s of the Choctaw and Cherokee tribes from the southeast to what is now Oklahoma, the tribes continued to breed their horses. The basis for the Oklahoma herds was horses brought from the southeast on the Trail of Tears, but no doubt some western horses were added as well.