Bryyo

Bryyo is a fictional planet found in the Wii video game Metroid Prime 3: Corruption, where it is found in the Chysus System. This is the second major planet that bounty hunter Samus Aran will travel to.

History
Bryyo was once the home of the species known as Bryyians, who were quite intelligent beings who protected the nature of their planet. During this time, the peaceful species known as the Chozo came to the planet, and gave the Bryyians knowledge, which allowed the species to create great civillizations and learn more of Science. In time, the Bryyians became greedy and called themselves the lords of science, and titled themsevles the rulers of Bryyo.

Once they started to try and convert those who went the way of old times, a war broke off, with the "lords of science" ultimately losing. In time, death occured in almost all of the Bryyians, though the machines they created with the knowledge the Chozo gave them still keep working.

Galactic Federation scientists suggest that the Reptilians that live ont he planet may in fact be some of the few remaining Bryyians, who have seemingly gone mad, and attack anything, including Samus.