Although no one had ever followed North American monarch butterflies on their annual southward journey to Mexico and California, in the 1990s there were well-ac

“What a wonderful idea for an adventure! Absolutely inspired, timely, and important.” —Alistair Humphreys, National Geographic Adventurer of the Year and

With his lifelong fascination with butterflies, America's best-known lepidopterist set himself an irresistible challenge: how many of the 800 species of butterf

Synthesizes current scientific knowledge on the life cycle, behavior, spectacular migration, and conservation of this charismatic insect.

Each fall, millions of monarch butterflies migrate from Canada to Mexico. Their incredible journey—nearly 3,000 miles long—takes them through Oklahoma, Texa