Resumen de 'Monkey archaeology' hints at primate culture
The first "monkey archaeology" dig has uncovered the tools used by previous generations of wild macaques--a group of primates separated from humans by some 25 million years of evolution. The discovery means humans aren't alone in leaving a record of past culture that can be pried open by archaeology. All sorts of animals can use tools, but they are usually made from perishable materials like leaves and twigs. This makes the origin of this behavior difficult to study.
