Raising animals is more damaging than transportation.
Global warming is stressing populations.
By monitoring avian flu, scientists prepare for possible pandemics.
Can an urban waterway reclaim its historical ecological health?
Learn the origins of our Moon.
A revolutionary set of star-seeking telescopes is taking precision to the next level.
Follow a satellite’s-eye-view of the habitats of the Congo River.
Geologists monitor Yellowstone National Park's volcanic system.
Nowhere else are primates as diverse…or as endangered.
Pluto in 2015...or bust.