Pre-Maya hunter-gatherers built the system in Central America in response to a drought between 2200 and 1900 B.C.E., ...

Initial results from Harvard reveal high levels of mercury in the Madeira, although still below the limit recommended by ...

Goetze: We’ve become accustomed to using mechanical devices to evaluate our environments. However, there are natural ...

Scientists who study a critically endangered species of whale that lives off New England say encouraging early signs suggest ...

Using drones and Google Earth imagery, archaeologists have discovered a 4,000-year-old network of earthen canals in what’s ...

In a river of northern Brazil, an “armored” creature swam through the water in search of its next meal — or tried to at least. But something caught the striped animal and pulled it to the surface.

The shallows of Bristol Bay and the river deltas that feed it can be a maze of shifting channels that prevent fishermen from ...