Farmers in the Andes use biodiversity as insurance.
Scientists seek cures for disease in underground microbes.
Tiny Ecuadorian spiders play a big part in the study of biodiversity.
Decreasing biodiversity may be related to the increase in cases of Lyme disease in humans.
A tenacious invader, the zebra mussel, loosens its grip on the Hudson River.
Visit Alaska's boreal forest to learn its role in Earth's climate.
What's driving fishes' rapid evolution in the Lower Congo River?
For marine life, climate change means more than warming.
Conservationists reintroduce a native horse species to its homeland.
Under human influence, species are spreading faster than ever.