When people think about habitats on Earth, they likely picture forests, oceans or grasslands. Few think to look up. Yet the lower atmosphere, or troposphere, may be the largest habitat on the planet.

Road trips to national parks are a classic US travel experience. But for truly "wild" landscapes, venture to these remote ...

Chinchillas have the softest and densest fur of any mammal on the planet. Discover how this unique feature has impacted its ...

Venezuela is on the northern coast of South America, bordered by the Caribbean Sea. Its diverse geography includes the Andes ...

From tiny penguins to large polar bears, these creatures must find ways to survive in the harshest environments of the planet ...