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?

In Florida's wetlands, the carnivorous pitcher plant is blurring the lines between predator and ally. Home to entire unique ecosystems, there are more to these ancient organisms than many realize. So why do these beautiful and vicious plants have mercy on some and not others?