Pando, Latin for 'I spread,' appears to be a forest but is actually one massive tree. Weighing 13 million pounds, Pando is the world's largest living organism. It has thrived in Utah's Fishlake National Forest, spreading across 106 acres with 47,000 stems. Find out how human intervention has both threatened its survival and sparked a passionate mission to protect it.

Locked within the stones and fossils of Petrified Forest National Park lies a record of life, death, and resilience during one of Earth's most extreme periods of environmental change. What secrets do these fossilized ecosystems reveal about the prehistoric past, and how can they help predict the future of life on Earth?