[DManA]

The title of his artical is:

"Evolution of army ant syndrome: the unique origin and long-term evolutionary stasis of a novel complex of behavioral and reproductive adaptation"

Will be published on the Web by the Proceedings of the National Academy of Science (PNAS) Online Early Edition between May 5 and May 9 before being printed in PNAS.

[Stultis]

But there is variation within the "army ant syndrome" regarding morphology, behavior of soldiers versus workers, bivouac behavior, foraging patterns, and so on. Again, "exactly the same" is clearly hyperbole since even living army ants are not "exactly the same".