Gaea


 * Gaia is a planet from Beast Wars II

Gaia is post-apocalyptic Earth in the distant future. There is no indication as to how many years into the future it is, but all signs would indicate it's very far away, as most of mankinds structures have been completely ruinated and most of the planet has been grown-over with dense jungle.

Beast Wars II
While going through transwarp space, Lio Convoy and the Maximals, as well as Galvatron and the Predacons, landed on Gaia. Galvatron was drawn to Gaia due to the high levels of the powerful energy source known as Angolmois riddled throughout its surface. Lio Convoy, aware that the universe would be doomed if the Predacons got control of the Angolmois, stayed with the Maximals to fight them off.

While the Maximals chose bodies based on the local wildlife, the Predacons selected bodies based on the war machines of the planet's former inhabitants.

Eventually, Galvatron used his battle ship, the Nemesis, to suck all the Angolmois out of the planet. Thanks to the intervening of Lio Convoy, the Angolmois was sealed away in capsules and scattered across the cosmos before Galvatron could use it.

Beast Wars Neo
After the disappearance of Lio Convoy and the Maximals, the Maximal Elders sent Big Convoy and his new recruits to investigate Gaia. They found Lio Convoy's black box, learned about the Angolmois capsules and set off to retreive them.

As it turns out, the Angolmois energy was really the lifeforce of Unicron. After his destruction in Transformers: The Movie, Unicron's lifeforce raced through time and space and became trapped within planet Gaia.

Trivia/Notes

 * It is never specifically stated in the show-itself that Gaia is Earth in the distant future. Instead, this was only made clear many years after the cancellation of Beast Wars II, in Lio Convoy's Robot Masters bio.