The Lekgolo first came into contact with the Covenant when the alien order arrived at Te in search of Forerunner artifacts in 789 BCE. The blasphemous creatures had devoured a Forerunner orbital, shattering its remains into a trillion pieces.' - A San'Shyuum Covenant scribe recalls the Taming of the Lekgolo. ' Our first encounter with the Lekgolo was an effort in futility. Contact with the Covenant Main article: Taming of the Lekgolo After several millennia, the Forerunner constructs were almost completely broken down, with the debris forming rings in the planet's orbit. These colonies developed distinct appetites while many consumed the Forerunner structures themselves for food, others ate anything except Forerunner materials. At some point following the firing of the Halo Array and their reintroduction to the moons of Te, a number of Lekgolo colonies settled in Forerunner installations orbiting the gas giant. Since their combined forms could potentially be highly intelligent, the Lekgolo were able to develop Tier 3 technology on their own, though their space travel capabilities remained highly limited due to the high gravity of their homeworld. They survived the firing of the Array and continued to reproduce and exist as a population for many thousands of years. A number of these specimens were ultimately buried under the surface of Installation 04 by the Forerunners for unknown reasons.

Lekgolo specimens of the Thanolekgolo configuration were to be used in a failed plan undertaken by the Forerunners to defeat the Flood.

The Forerunners cataloged the Lekgolo in their time, albeit in considerably different assemblages than the ones that would be encountered later on. The Lekgolo first evolved on one of the moons of the gas giant, Te, and thrived by feeding off the rich metal deposits in its crust.

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