LIVE CAM: Brown Bears on Southwest Bank of Brooks Falls

In this special episode from explore.org, "The Challenge of Change," join Charles Annenberg Weingarten and the explore.org team on their journey around the world to discover the selfless acts of others. Witness the challenge of change in its various forms from the Middle East to the U.S. and the Arctic.

Take a journey around the world with Charlie and the Explore team on their quest to capture the essence of mother nature. Hike through Rwanda's rainforests to explore the lives of wild mountain gorillas; sail through the Bahamas and witness dolphins at play; and watch endangered pandas melt hearts at the Wolong Giant Panda Reserve in China.

explore.org is a philanthropic media organization and a multi-media division of the Annenberg Foundation. Created by filmmaker and philanthropist Charles Annenberg Weingarten to champion the selfless acts of others, inspire lifelong learning and help people fall in love with the world again, explore.org is home to more than 300 original films and a massive library of world-class photography from all over the globe.

explore.org is a philanthropic media organization and a multi-media division of the Annenberg Foundation. Created by filmmaker and philanthropist Charles Annenberg Weingarten to champion the selfless acts of others, inspire lifelong learning and help people fall in love with the world again, explore.org is home to more than 300 original films and a massive library of world-class photography from all over the globe.

Craig Sholley of the African Wildlife Foundation describes his organization's efforts to preserve the 720 gorillas that remain in Rwanda. Learn about the species that is 98.6 percent similar to human beings in one of the most popular episodes of "Explore."

In this episode of "Explore," Charlie and his team are on a fact-finding mission to learn about the obstacles and opportunities faced by those with disabilities. Meet the former mayor of Vancouver, Sam Sullivan, who survived a near fatal ski accident at the age of 19 leaving him almost completely paralyzed from the shoulders down. Overcoming his physical impairments, Sullivan has dedicated his life to working with the disabled and people struggling with addiction.

Meet John Singh, Rajisthani Maverick, who is single handedly trying to save traditional Indian music from going extinct.