Science  

Chris Morgan sets up camp at a remote spot in the heart of Alaskan wilderness, alongside the largest concentration of grizzlies in the world. The bears are taking advantage of the long days to feed, mate, and raise new cubs. Morgan tracks their progress as they feast on the riches of the season and re-establish the complex hierarchal social dynamics of bear society.

Cuba's wild splendor has been preserved by half a century of political isolation and economic stagnation. Now, it faces the pressing challenge of protecting its precious natural assets as it transitions into the 21st century.

How smart are dogs, and what makes them such ideal companions? Nova investigates what goes on inside the minds of dogs.

CINE Golden Eagle Award Winner: Hummingbirds spend most of their lives in fast forward.

How did medieval builders create the great cathedrals, reaching spectacular heights using only hand tools?

Birth of Humanity: New discoveries reveal how early humans hunted and formed families.

To comply with federal regulations meants to restore US fish stocks to sustainable levels, new quotas were set in New England for the first time on all species of groundfish. Rachel Gotbaum examines if these rules will lead to the end or the survival of New England's fishing industry.

Let your cell phone ring with the sweet sounds of Nova

Each week, The World’s Jeb Sharp looks at the history behind the headlines on the How We Got Here podcast.