Changes

The series deals with themes that may be considered mature for the targeted age group (9-12 primarily), such as war, death and personal loss. However, the books also display numerous conservative traits such as bravery, self-sacrifice and the ability to prevail even against massive odds. Freedom is probably the biggest theme throughout the series, since the main antagonists of the series acheive their goals by suppressing the freedom of others via directly infiltrating the brain and controlling each and every movement of the body. The main goal of the Animorphs is to free Human hosts already taken by the Yeerks, and stop further infestations and the invasion of Earth (while simultaneously freeing members of species previously invaded by the Yeerks, i.e. Hork-Bajir).

The series deals with themes that may be considered mature for the targeted age group (9-12 primarily), such as war, death and personal loss. However, the books also display numerous conservative traits such as bravery, self-sacrifice and the ability to prevail even against massive odds. Freedom is probably the biggest theme throughout the series, since the main antagonists of the series acheive their goals by suppressing the freedom of others via directly infiltrating the brain and controlling each and every movement of the body. The main goal of the Animorphs is to free Human hosts already taken by the Yeerks, and stop further infestations and the invasion of Earth (while simultaneously freeing members of species previously invaded by the Yeerks, i.e. Hork-Bajir).

The lines between good and evil are initially clear and distinct, but as the series develops, the moral lines are blurred and characters/species that were initially thought to be wholly bad or wholly good perform acts contrary to how the reader may expect. For example, the Andalites, at first shown to be noble, brave, and expected to be the heroes to one day save Earth, were the ones to initially release the Yeerks in the first place, and further continued to underestimate the Yeerks while they enslave entire races. Towards the end of the series, the Andalites come close to annihilating the Human species in order to slow Yeerk progress, but this is averted by the Animorphs actions.

The lines between [[good and evil]] are initially clear and distinct, but as the series develops, the moral lines are blurred and characters/species that were initially thought to be wholly bad or wholly good perform acts contrary to how the reader may expect. For example, the Andalites, at first shown to be noble, brave, and expected to be the heroes to one day save Earth, were the ones to initially release the Yeerks in the first place, and further continued to underestimate the Yeerks while they enslave entire races. Towards the end of the series, the Andalites come close to annihilating the Human species in order to slow Yeerk progress, but this is averted by the Animorphs actions.