No. A Yeerk is an alien parasite, the villain of the Animorph series, written by K.A. Applegate.

yes. he is the yeerk leader. The most powerful yeerk, also known as the most cruel leader of them all.

its Vissor Three. HE is the third best Yeerk in the world

A yeerk is a parasitic alien species from the book series "Animorphs" by K.A. Applegate. Yeerks enter the brain through the ear canal and take control of their host's body, becoming the dominant consciousness. They are the primary antagonists in the series.

The main enemies in the Animorphs series are the Yeerks, a parasitic alien species that invades the brains of other species, including humans, to take control of their bodies. The Animorphs are a group of teenagers who fight against the Yeerks to protect Earth from being taken over.