Humans are the main protagonists of the series and are native to planet Earth. They are the latest victims of the Yeerk Empire. According to assorted Yeerks throughout the series, humans were chosen as targets because they are numerous (numbering around 5.8 billion potential hosts at the time of writing) and unaware of the exisance of other sentient life forms. According to Aximili, it is possible that the Yeerks also feared humans due to their ability to adapt and learn rapidly. Humans have a distant cousin that live in the ocean known as the Nartec, a race of aquatic humans.
- Every Book in the Animorph Series