What's a total solar eclipse and why this one is so unusual

Total solar eclipses occur every year or two or three, often in the middle of nowhere like the South Pacific or Antarctic. What makes the Aug. 21 eclipse so special is that it will cut diagonally across the entire United ...

Ant genomics help reshape biological history of the Americas

Scientists have long believed that the Isthmus of Panama emerged from the ocean three million years ago, triggering a massive interchange of species between the Americas in its wake. However, recent conflict in both geological ...

Peccaries of Mesoamerica now highly threatened, warn experts

Hunting, deforestation, and cattle ranching in Mesoamerica have become a triad of trouble for the white-lipped peccary (Tayassu pecari), an ecologically important species now threatened with regional extinction, according ...

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