Enric Sala wants to change the world and he shows us how in his new book. Once we appreciate how nature works, he asserts, we will understand why conservation is economically wise and essential to our survival.
Every year, hundreds of thousands of fireflies begin their mating dance in the pine forests of Mexico. Filmmaker Blake Congdon captured this incredible phenomenon as never before seen.
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 oleh divers off the coast of Monterey, California.