The Great Monarch Migration
The journey of monarchs is one of the insect world’s greatest phenomena. Sometimes traveling thousands of miles to their destination, the instinct and environmental triggers that cause them to move are not fully understood by researchers. Natural Phenomena The north American monarch populations journey begins at their overwintering grounds in the mountains of Mexico. Monarchs cluster together on oyamel fir trees, nearly 2 miles above sea level; it is important for them to gat
