Evolution of Earliest Horses Driven by Climate Change
The hotter it gets, the smaller the animal?
Researchers Find a Key to Growth Differences Between Species
The tiny, little-noticed jewel wasp may provide some answers as to how different species differ in size and shape. And that could lead to a better understanding of cell growth regulation, as well as the underlying causes of some diseases.
Classic Maya Civilization Collapse Related to Modest Rainfall Reductions
A new study reports that the disintegration of the Maya Civilization may have been related to relatively modest reductions in rainfall.
Geological Cycle Causes Biodiversity Boom and Busts Every 60 Million Years, Research Suggests
A mysterious cycle of booms and busts in marine biodiversity over the past 500 million years could be tied to a periodic uplifting of the world's continents, scientists report in the March issue of The Journal of Geology.