Add Yahoo as a preferred source to see more of our stories on Google. Sixty years ago, scientists embarked on an experiment to teach American Sign Language to chimpanzees—and ultimately prove humans ...

Chimpanzees can change their minds when the facts no longer support their previous beliefs – a rational level of thinking that was once considered uniquely human. In a series of experiments designed ...

New research on chimpanzees is forcing scientists to rethink where the line between human and animal minds really lies. In carefully designed experiments, chimps are not just grabbing at treats or ...

Aden Kahr Humans have long been fascinated by crystals. Archaeological evidence suggests our ancestors have treasured small quartz and calcite stones for at least 780,000 years, often bringing them ...

They gave quartz, calcite and other types of crystals to chimpanzees in a rehabilitation center. The apes responded with great interest, and the researchers ended up needing to trade large amounts of ...

When Aristotle claimed that humans differ from other animals because they have the ability to be rational, he understood rational to mean that we could form our views and beliefs based on evidence, ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Scientists from City St George’s, University of London created a ...

Source: Ruben van Kuik, via Wikimedia Commons. How do scientists study the evolution of human culture and cognition? There aren’t any early hominins around—but there are chimpanzees, our closest ...

The National Institutes of Health wants you to believe that chimpanzee experimentation is necessary. It so badly wants you to believe this that the agency just two months ago began to use your tax ...