Although Natu are native to the Americas, small flocks have been found from Hoenn to Sinnoh, which are generally thought to have been imported to this region by the ancient city of Alph. And although the climate of the area is not substantially different from that of Violet City, Azalea Town, or many other regions in the area, the tall grass outside Alph's ruins is the only part of Johto where wild Natu can be found.
And like a Growlithe who waits for their master years beyond his death, Natu in Johto have become a symbol of loyalty. Unlike the Unown, who found the vast caverns where Alph once stood uniquely suited to them even when the people there were wiped out, Natu stand guard over a ruin where no people live, refusing to leave the spirits of the dead city which once loved them as pets and treated their evolved forms of Xatu as beings one step below the gods.
Some have said that Natu, because they can see the future, are lying in wait for Alph to rise again, but it is difficult to see how such a future would ever come to pass; it has been over a thousand years and the region has only declined. Today, there are no inhabitants left to rise again, save perhaps for a couple of archaeologists who could theoretically go mad and seek to conquer the world with Unown. Others say they refuse to leave not out of loyalty, but out of bitterness, for the surrounding lands of Johto all participated in the great sack of Alph, and Natu never forget or forgive a grudge.
