
How great is the evolutionary distance between humans and apes, and what is it that creates that gulf? Philosophers and scientists have debated the question for centuries, but Michael Corballis finds the mystery revealed in our right hands. For humans are the only primates who...

What is it that allows human beings to think the way we do? What enables us to communicate with one another through the use of speech? Is the difference between Homo sapiens and other apes simply a matter of degree or are we unique and discontinuous from other species? Michael...