A monkey descending a tree trunk often keeps its head up, moving almost like a cautious climber backing down a ladder. Squirrels and many other mammals, by contrast, tend to go headfirst. That ...

This photograph shows two species from the study by Toussaint et al. – a raccoon (Procyon lotor) and mongoose lemur (Eulemur mongoz) – climbing on vertical supports. Researchers have shed new light on ...

This past week, I had the good fortune of teaching a group of nearly 100 bright and eager students at Chongqing University of Education, deep in the heart of China. The class that I teach here ...