Between the Old World, which includes Africa and Asia, and the New World, which includes Mexico and Central and South America ...

It looked a bit like a monkey from much further east, but the coloring was so different and the range was so different," said Dr. John A. Hart lead scientist and researcher with the Lukuru ...

Thomas’s leaf monkey in Sumatra. Photo by: Rhett A. Butler. With unmistakable coloring and a philosophical, at times almost melancholy expression, the Thomas’s leaf monkey (Presbytis thomasi ...