Upon the Jiralhanae's inclusion into the Covenant a group of Sangheili commanders went before the Covenant High Council and claimed that the Jiralhanae's pack mentality would inevitably bring conflict between the two species.
The Covenant . Eventually, the Yanme'e became an interstellar-faring, Tier-4 species. The Yanme'e first encountered the Covenant in the year 1112, while the Covenant was searching for Forerunner artifacts. Initially, first contact was violent as the Yanme'e attempted to resist the alien invaders.
The Sangheili (Macto cognatus in Latin taxonomy, meaning "I glorify my kin") are a saurian sapient species known for their warrior culture and reasonable skill in combat. Named after their home planet, Sanghelios, they have historically been known to humans as Elites for their former role in the Covenant's military hierarchy.
The Huragok are an artificial species created by the Forerunners for the purpose of maintaining and repairing technology and installations. The Huragok are an artificial species created by the Forerunners for the purpose of maintaining and repairing technology and installations.
Yep. Covenant is a translation. Grunts are called grunts because humans call them grunts. This goes for all of the races in the Covenant. Elites, Prophets, Brutes, Drones, Jackles, Hunters, etc.
Mgalekgolo are capable of manifesting in several different iterations according to what goal they are striving to achieve and the amount of Lekgolo worms that are present. The Mgalekgolo is the most common form seen in combat, but is actually one of the more rare forms in the Lekgolo society.
After the Kig-Yar joined the Covenant, all of their governmental systems became obsolete. Following the Covenant's dissolution after the Human-Covenant War, the Kig-Yar had no true functioning government to control Eayn and its colonies.
San'Shyuum (Latin Perfidia vermis, meaning "Worms of Treachery"), also known as Prophets by humanity, are a species who were the leadership caste within the Covenant, and one of the more mysterious member races of the hierarchy.