Because, generally speaking, among the major Prime Material Planes, only dragons of the Elder Dragon level could reach fifty-five meters in length.
Among the Dragon Race, Mature Dragons were around twenty-five meters long, Old Dragons around thirty meters, Very Old Dragons around thirty-five meters, Ancient Dragons around forty-five meters, Elder Dragons around fifty-five meters, Archaic Dragons around sixty-five meters, and Primordial Dragons around seventy-five meters.
Although a dragon's size could vary somewhat depending on its kind, there was generally little difference; overall, there were no extreme disparities in scale.
The dragons of the Divine World might appear small, but in truth, that was because of the world itself.
Once they left the Prime Material Plane and entered the Astral Realm of the Divine World, however, the suppression on dragons eased considerably.
In Astral Realm battles, dragons could swell to ten thousand meters—or even hundreds of thousands of meters—in size.
Dragons born in the Astral Realm rarely entered the Prime Material Plane.
That was because in the Astral Realm, it was difficult to kill an enemy above your level, whereas in the Prime Material Plane, suppressed dragons could easily be slain by foes far beneath them.
And if a dragon left the Divine World entirely and entered the Origin River Void, it would swell to thousands or even tens of thousands of billions of light-years in size, reaching the scale of a World Cluster and fully regaining its true form.
Simply put, you could get a rough idea of how powerful a dragon in the Divine World was just by looking at its size.
A small dragon was not necessarily weak, but a huge dragon was certainly powerful.
Now, while still in his prime, Green had already reached the size of an Elder Dragon.
In the Dragon Race's inherited knowledge,