The orphaned polar bear cub that was rescued in Alaska earlier this year arrived safely at a new home in Buffalo, N.Y.

The Central Park Zoo’s celebrated star was made famous when an animal psychologist was called in to address the bear’s problems.

The culprit of the sudden death of famed polar bear tot Knut has been found, says an international team of scientists.

The 2-month-old cub at the Toronto Zoo hasn't quite nailed walking, but he's definitely got being cute figured out.

Polar bears have shifted to a diet of more land-based food in response to climate change and melting sea ice.

This real-time aurora video may not seem amazing at first, but that quickly changes at the 1:52 mark.

The world's southernmost population of polar bears is waiting for sea ice to form just weeks before the U.N.'s climate change conference.

Researchers are spinning spider silk from goats' milk.

Video: Historical films and field work reveal more about endangered Native American language.

Video: Is a trip to the 3-D movies making you sick?

Astronomers use infrared "eyes" to shed light on these enigmatic cosmic structures.

Find out what wood ducks are revealing about threats to our fine feathered friends.

Video: Robots help surgeons transcend human limits.

Video: Getting enough shut-eye really matters for children, and those who are poor need it the most.

Brian Zenowich will sometimes spend his workdays doing a little arm-in-arm dancing. His dance partners manage to stay in step, duplicating his every move almost

Find out when it's best to shell out your cash in exchange for tickets.

Video: What was really on the menus of our ancestors?

A comparative psychologist says African grey parrots have the social skills of a 2-year-old child and the intelligence of a 5-year-old.

Video: Researchers are developing a robot language so 'bots' can cooperate with each other.

Video: Maps can provide real-time traffic information and 'fastest route' suggestions using geo-immersion — new technology that blends the real and the virtua

Video: Aerial surveillance cameras in some stores track our shopping behavior and help retailers determine what to sell and how to position it.

Team of scientists and engineers head to the heart of earthquake country to learn more about predicting when and where an earthquake will happen — before the

Locked-in syndrome, often the result of injury or illness (such as Lou Gehrig's), causes complete paralysis. With advanced technology, these people get closer t

An entire ecosystem living without light or oxygen flourishes beneath the ocean floor.

A freshwater lake the size of the state of West Virginia has practically disappeared. The lessons that the Aral Sea may hold for U.S. waterways.

Sometimes, the big guns in Congress aim to keep stuff 'away' from their states. Senator Harry Reid and the tale of Yucca Mountain is a prime example.

You'll never guess who's fighting to stop the construction of a wind farm off the shores of Cape Cod. Environmentalists.

British Petroleum CEO Tony Hayward is very mindful of the need to keep bacteria out of his workers' food. Keeping toxins out of their lungs -- not so much.

Comedian beats up BP CEO look-alike on 'Colbert Report'.

Five years in the making, the film takes audiences on an interfaith journey through one of the world's 'most storied' cities.

Nat Geo's telling of Christ's life focuses on his plight as a human being living in such a tumultuous time.

How have Easter's ancient paganist roots manifested in this modern Christian celebration?

The pontiff's sweeping new encyclical is meant not just for Earth's 1.2 billion Catholics, but for 'every person living on this planet.'

Metaphysical services are disappearing from the online marketplace faster than you can say 'I bind you, Etsy, from doing harm ...'

Here are a few of the most popular Buddhist holidays explained.

The effect was greatest as kids got older, with tweens increasingly less likely to share.

What did Jesus' drink at his last meal? Experts speculate what the modern-day counterpart would be, and you can try this at home, too.

If you think kosher wine is only for a specific group of wine drinkers, think again.

The spells are written in a mysterious language, but a few names of demons could be deciphered.

When the Dalai Lama and Archbishop Desmond Tutu get together to share wisdom, we should all stop to listen.

The new policy at Dignity Health Mercy Medical Center in Merced builds trust and community, and the patients are seeing the results.

This nun in Ireland shows off her soccer skills in a game of keepie uppie with a police officer.

Archaeologists conducting digital surveys below the surface of St. Nicholas Church have discovered an untouched temple.

From Gothic masterpieces to unusual spiritual retreats, these churches offer beauty to every worshiper.

These symbols of good luck from around the world might just improve your energy in the universe.

Pope Francis' cows play a key role in a centuries-old restoration technique used on Vatican City's Belvedere Palace.

The Swedish ritual of Årsgång or "year walk" is said to reveal visions of the future — if you can complete the requirements.

The festivities preceding the Catholic season of Lent are known by different names in different parts of the world. But it's a celebration everywhere.

Martin Luther King Jr.'s legacy lives on through his speeches and sermons.

Tsepdro is a sacred art form in Tibet. It's traditionally made during Losar, the Tibetan New Year.