Pacific absolute plate-motion change as obtained from a hotspot reference frame (red; from Wessel and Kroenke (2008)) versus as obtained from RPM analysis (blue; fixed Eurasia plate). Map shows the 30 ...
Stretching like a colossal spine along western South America, the Andes stand as the world's longest mountain range. It spans 8900 kilometers along South America's western periphery, is up to 700 ...
In a new study, researchers created the most detailed distribution map to date of butterflies in the American tropics, showing that areas of highest diversity coincide with regions most threatened by ...