Monarchs do this quite a bit but we don't how much they do it.

Things have changed quite a bit since then.

That was quite an ordeal.

When I got started with this, it appeared that the whole migration was just chaos pushed by weather, totally unpredictable. It turns out you can predict to within two or three days where they are going to be, and they make this migration on the basis of some celestial change.

If we lose the whole migration, we lose one of the nation's most magnificent phenomenon.

They are interested in conservation and the issues involved in saving monarch habitats in both the United States and Mexico.