Learn more about our impactLearn more about our impact
WWF works to sustain the natural world for the benefit of people and wildlife, collaborating with partners from local to global levels in nearly 100 countries.
Why do monarch butterflies migrate?
The butterflies migrate from the United States and Canada to central Mexico to hibernate in mountain forests, where a milder climate provides them a better chance for survival.
How many generations of monarch butterflies does it take to make the southbound annual migration of 2,800 miles or more to Mexico?
A single generation performs the incredible feat of migrating from Southeast Canada and the Northeast United States to central Mexico to hibernate during the winter.
How many generations does it take to complete the return journey north?
At the beginning of spring, the same generation starts the return migration all the way to Texas, where they lay their eggs. The next three to five generations will continue to fly North to complete their journey.