The Amazon rainforest is often described as 'the lungs of the earth' although, usefully, it does the exact opposite: breathing in carbon dioxide and exhaling oxygen.

The tropics are celebrated as hotspots of biological diversity and renowned as supply houses for food, fiber and pharmacies.

Two baby cougars photographed in the western Upper Peninsula last week appear to be Michigan's native born cubs in more than ...

"Field surveys in neighboring regions ... could help delineate its range." Scientists make astonishing rediscovery on the ...