NOVA S49E02 - Butterfly Blueprints

The hidden scientific secrets of butterflies reveal them to be more inventive and resilient than we ever imagined. Follow their extraordinary life cycle and migrations to tropical rainforests, windswept prairies, and even inside a chrysalis as it's being spun. Discover how butterfly science inspires groundbreaking technology, including more efficient solar power cells and bulletproof vests stronger than Kevlar.