WWF: Long-distance swimming puts polar bears at risk of drowning due to fatigue or rough seas. Cubs are at even greater risk because their smaller body size and limited body fat leaves them more prone to hypothermia, and they don’t have the energy reserves of an adult bear.

If you like science fiction, you’ll enjoy this trailer of The Hunger Games, an action drama film set in the ruins of what was once North America. Directed by Gary Ross, the film is based on the novel of the same name by Suzanne Collins and stars Jennifer Lawrence, Josh Hutcherson and Liam Hemsworth.

Check out this clip with more of Bob Parsons’ practical advice for dealing with cyberbullies.

British singer Adele won two prizes at the 2009 Grammy Awards, Best Female Pop Performance and Best New Artist and made a triumphant return at the 2012 Grammy Awards with a perfect six-for-six performance. In this clip, she reveals the inspiration, a very personal one, behind her second single, "Chasing Pavements".

WWF marine advocate Bob Zuur out at night on penguin patrol as part of the Oiled Wildlife Response team.

Learn about conjugating verbs in several different tenses and forms in this playful clip. See how many you can identify. Enjoy!

Cheryl Cole, band member of Girls Aloud, talks about some of the highlights in her career.

Here’s the trailer to Tower Heist, the recently released crime comedy film with Eddie Murphy, Ben Stiller and Alan Alda. Enjoy!

A video by the World Wildlife Fund WWF: Climate change is one of the greatest threats to wildlife and nature. Call your Senators at 1-800-217-7379 and ask them to support climate legislation on behalf of those who cannot call themselves.

Like it or not, cyberbullies are for real. Bob Parsons gives you his top tips for putting these pesky losers into perspective and getting them out of your hair.

Jessica and Liz demonstrate how to order food at a restaurant. Enjoy!

Take a look at this clip that spans the career of the American model and film actress Holly Weber. Enjoy!

Visit New York City's Union Square Holiday Market. Meet the people there. Hear the sounds, see the sights and enjoy what has become a popular Christmas tradition!

Meet people on the streets of London who talk about how they spend their Christmas holiday. Enjoy!

Chris Brown and Rihanna to Perform on “Today” Show Summer Concert Series. A video by PopTopic TV