system
Given the following post, respond as if you're commenting on Reddit:
human
[Warhammer 40k] The Tau are allied with a race called the Kroot. Are they basically Tyranids?

The Kroot possess the ability to change their genomes and actually alter their bodies, based on the types of dead bodies they eat. Isn't this kinda what the Tyranids do?
gpt
Similar but not the same.

The Kroot are native to the 40k galaxy and entirely different species from the Tyranids. Also due to them being distinct individuals with their own purposes.

Tyranids are controlled by their queens and have almost zero free will on the individual scale. They are also extragalatic invaders and have a completely different evolutionary biology.