Disclaimer: I don't claim that what I say is totally "true," because the truth is elusive in this complicated world. Rather, I'm offering some ideas to help perceive the world and ourselves in a ...

As a young mechanical engineering student, and later as a medical student, Yale’s Samuel Wilkinson became fascinated with what science — particularly theories of evolution — might tell us about the ...

What is our purpose on Earth? Why are we here, what is expected of us? What is the purpose of our existence? Deep questions with answers hard to define. There are many theories of what our purpose on ...

Challenge your mind right now. Come up with a brief, meaningful, and defensible definition of life. Try it. How hard can it be? You know life when you see it, right? You are life. So put that search ...

In this Back To School episode we consider the "List of Life": the criteria that define what it is to be a living thing. Some are easy calls: A kitten is alive. A grain of salt is not. But what about ...