New Orleans airboat tours let Louisiana visitors immerse themselves in the bayou and come awfully close to swamp creatures.

Stunning discoveries and fresh breakthroughs in DNA analysis are changing our understanding of our own evolution and offering a new picture of the "other humans" that our ancestors met across ...

A broad definition of wetlands includes both freshwater and marine and coastal ecosystems, such as all lakes and rivers, underground aquifers, swamps and marshes, wet grasslands, peatlands ...