Key Facts

• Monarch butterflies in Mexico saw a 64% increase in their population this winter.
• This increase is important because the monarch butterfly is an endangered species.
• The growth in population occurred in Mexico, where many monarchs spend the winter.
• This rise gives hope for a successful spring migration to the U.S. and Canada.
• Monarch butterflies make long journeys across North America, migrating thousands of miles.
• Their population growth is crucial for their survival and environmental balance.