As the world urbanizes rapidly, [[tweetable]]international experience has shown that economic activities concentrate in a relatively small number of places[[/tweetable]] – it is estimated that…

Sameh Wahba, Judy Zheng Jia |

In a recent exhibition at the American Museum of Natural History in New York City, “Dinosaurs Among Us, ” paleontologists use prehistoric fossil records of bones, feathers, and nests to show that…

Alexandria Valerio, Ji Liu |