Peyton Manning explains why his brother had such a bummed out expression on his face after his Super Bowl 50 win. It turns out that wasn't the first time he's gotten that look from Eli.

In this final installment of the series, a white Kermode bear encounters a black bear while fishing. Observe their behavior. Look and see for yourself what ensues!

Romantic chemistry is all about warm, gooey feelings that gush from the deepest depths of the heart... right? Not quite. Actually, the real boss behind attraction is your brain, which runs through a very quick, very complex series of calculations when assessing a potential partner. Dawn Maslar explores how our five senses contribute to this mating game, citing some pretty wild studies along the way.

The salmon that make it upstream mate and then die of exhaustion. Meanwhile, many other animals are lurking and waiting to feed.

In this episode, we see how the bears coexist with other creatures in their environment, and also learn about the role of the bear in Tsimshian lore. Enjoy!

MTV has unearthed an amazing clip of David Bowie backstage at Live Aid with Thomas Dolby, talking about Labyrinth and his “Dancing in the Street” music video.

Quentin Tarantino's film The Hateful Eight is a Western set in the late nineteenth century. When eight outlaws find themselves stranded in a blizzard, it is unclear who will survive.

In order to fatten up before winter sets in, brown bears feast upon salmon migrating upstream to spawn. Enjoy!.

The Great Barrier Reef is the world's largest coral reef system and one of the most diverse and rich ecosystems on the planet. It is now in great danger, as the Australian and Queensland governments are giving coal companies permission to dig up coal and ship it out through the Great Barrier Reef.

Catch glimpses of sockeye salmon, also called red salmon, as they make their way upstream in a migration known as the "red flood." Also included is footage of dippers, which are some of the only songbirds that search for food on the bottom of a body of water.

This December over 190 nations will gather in Paris to discuss a new global agreement on climate change. The talks are called 'COP21' which stands for the 21st annual Conference of the Parties, but what does all that mean and why is any of it important? This film will not only give you the facts but help you understand why it matters to all of us - in less than two minutes!

In summer, mother bears and their young cubs can be spotted on the plains near Hallo Bay in Alaska's Katmai National Park.

"Help us to complete development of the Ocean Energy Turbine designed to replace Fossil Fuel and Nuclear Energy Dependence." Back this project and make the world a better place.

Travel over the ocean and through the woods with Robby Naish, Kevin Langeree and Jesse Richman as they make their way down the West Coast in search of one-of-a-kind kiteboarding spots!

Observe more stunning footage from Alaska of the bald eagle and the black bear. And finally catch a first glimpse of the rare glacier bear. Enjoy!