Join conservation scientist Dr. M. Sanjayan for a global environmental health check of seven of Earth's bellwether biomes. From the Arctic to the Amazon, these vulnerable habitats are changing, revealing surprising animal behaviors as species adapt.

Revisit six of our planet's most vulnerable ecosystems and catch up with truly inspiring scientists and local experts fighting to safeguard their communities and wildlife, and charting the progress of their game-changing environmental projects. Join conservation scientist Dr. M. Sanjayan to meet new faces who’ll deepen our understanding of these habitats.