Earth is the planet of the Humans.
Before the introduction to Aliens, Earth was a Level 2 Planet. Its citizens only thought Ben's aliens were the only aliens, except for the Plumbers and their allies.
After the introduction to Aliens, Earth became a Level 5 Planet at least. Aliens and Humans and the other sentient beings are now treated as equals.
- Sentient Cryptids
- Millions of other species
- Rest of the Cryptids
- According to Azmuth, Earth has the most variety in Flora and Fauna in the Milky Way Galaxy. All Fauna have been sampled and put into Lassie's Collarmatrix and one of the many rivers of DNA on Primus. All Flora have been sampled and put into one of the many rivers of DNA on Primus.