by Katie Neith
When you consider the transformation of modern human beings over the past 250,000 years, it is clear that both biological evolution and human invention have contributed to our ongoing development as a species. The use of complex language is, of course, a key skill that sets us apart from other animals, and one that many scientists believe is primarily a product of natural selection. But Caltech professor Fiona Cowie, who studies evolutionary biology and linguistics through the lens of philosophy, believes that language is a tool that was originally a product of human ingenuity.
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