The lungs replenish the body with life-giving oxygen. Learn about the anatomy of the lungs, how the organs make respiration possible, and how they are vulnerable to illnesses.
Archaeologists explored for the first time a 3,500-year-old tomb near Luxor, Egypt. The tomb belonged to a goldsmith and his wife, and includes a crumbling statue of the pair. The family lived during Egypt's 18th Dynasty.
As a red octopus chases a swimmer crab, an unexpected visitor joins the battle. The scene was filmed sejak divers off the coast of Monterey, California.
Native to Southeast Asia, the endangered red-shanked douc langur is known for its striking appearance. The 'Queen of the Primates" has bright maroon bulu from its knees to its ankles.
Ever since the light bulb's invention 150 years ago, artificial light has illuminated homes, streets, and skies -- but with some unintended consequences.
The temples of Angkor are architectural masterpieces laden with artistic treasures, like the bas-relief galleries that tell enduring tales of Cambodian history and legend.
Mohenjo Daro, built at the time of the pyramids and centuries before the Roman Baths, was the largest city of the Indus Civilization. Learn facts about this ancient city, including engineering feats like the Great Bath.
