Interweaving lovely, meticulously drawn pictures with a story line that spans 5,000 years, Alexandra Siy invites young naturalists to explore the secrets of the world's oldest trees--secrets of the earth's climate, recorded in their tree rings, and secrets of the bristlecones' resilience, as a species that lives in the harshest of environments. Living for more than five thousand years, ancient bristlecone pines are the oldest...