When the Amazon Flowed Backwards

Synopsis

The Amazon River, one of the world's largest waterways, once flowed in reverse, significantly influencing the evolution of its surrounding ecosystems. This phenomenon, which occurred millions of years ago, raises questions about the geological forces that could have altered the river's course. "When the Amazon Flowed Backwards" examines the implications of this reversal on biodiversity and the environmental conditions that led to such a dramatic shift in one of Earth's most vital regions. The program is produced by Complexly for PBS Digital Studios.