Researchers at the University of Arkansas have established that pits and scratches on the teeth of mammal fossils give important clues to the diet of creatures that lived millions of years ago. Two new studies, both involving ...
2 hours ago in Archaeology & Fossils
A college degree practically stamped Andres Aguirre's ticket to the middle class. Yet at age 40, he's still paying the price of admission.
Oct 05, 2015 in Economics & Business