(PhysOrg.com) -- Last month, Doug Wiens, PhD, professor of earth and planetary science at Washington University in St. Louis, was cruising the tropical waters of the western Pacific above the Mariana trench ...

Space & Earth - Earth Sciences

Mar 22, 2012 5 / 5 (2) 0

(AP) -- The first national survey of Sri Lanka's wild elephants found more than had been estimated - a sign the endangered species has a healthy, growing population on the Indian Ocean island.

Biology - Ecology

Sep 03, 2011 not rated yet 5

Aggregating nearly the entire landmass of Earth, Pangaea was a continent the likes our planet has not seen for the last 200 million years. Its size meant there was a lot of space for animals to roam, for there ...

Space & Earth - Earth Sciences

May 12, 2011 4.6 / 5 (7) 0 |

Thirty million years ago, before Ethiopia's mountainous highlands split and the Great Rift Valley formed, the tropical zone had warmer soil temperatures, higher rainfall and different atmospheric circulation patterns than ...

Space & Earth - Earth Sciences

Oct 22, 2009 4.2 / 5 (6) 0

Climate change is rapidly expanding the size of the world's tropical zone, threatening to bring disease and drought to heavily populated areas, an Australian study has found.

Space & Earth - Earth Sciences

Jul 06, 2009 3.2 / 5 (17) 2