Katie Bauer Murdock

Just inside Everest's notorious death zone, a team of climate scientists who specialize in extreme weather weigh their next move.

Explorers investigate the Amazon's diverse ecosystems and species, from mangrove forests to pink dolphins and Andean bears, revealing urgent challenges and hopeful solutions for conserving this vital freshwater resource.

In the heart of Uganda, there are lion prides that spend much of their lives in the trees – a rare and mysterious behavior seen in few other places in Africa – and little is known about why they do it. Big cat biologist Alexander Braczkowski sets out to study these lions, and his journey takes an unexpected, emotional turn.