Thinking about it, the whole anteater ending in 24 makes no since. How exactly would morphing anteater fix their size?
The Animorphs and all their morph DNA had been shrunk by the Helmacron shrinking ray. The Anteater DNA was of normal size, so that when the Animorphs used it, they became full sized anteaters! So did Visser 3.
What would have happened had the unshrink ray been used on the full sized anteaters?