Why Come Back North in the Spring?
Taking a Global View

Think! What do monarchs — and their young — need in order to survive? Make a list.

Compare the monarch's winter and breeding ranges.

  1. Click on map to enlarge it.

  2. What differences do you notice between the monarch's winter range and breeding range?

  3. In which region would monarchs and their young best be able to survive? Explain your thinking.
Red = Monarch Butterfly breeding range
Yellow = Monarch Mexican winter sanctuaries
Next: What Scientists Think >>