Human Extinction & the Columbian Exchange

It seems a dramatic thing to state, it’s true. The Columbian Exchange could have caused human extinction. Today I’ll explain how. It involves a bit of counterfactual history, of course, given that humanity is not extinct. If you need to read my last post to understand how this became possible, click here. We left off […]

The Columbian Exchange – An Introduction

The Columbian Exchange ranks among my favorite historical topics I used to teach. I regard it as the most important event combining biology and history in the modern world. Only a handful of events in all of history can even compare in importance. Similar candidates include the industrial revolution, the major world religions, perhaps the […]