You are what you eat, right? Well then, who were the ancient Romans, and who were the people they colonized? And who are we? And why do we eat so much chicken? This week we're sitting down with Silvia Valenzuela Lamas to talk about how Roman colonization changed both the animals people raised and how...

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In his book Tenacious Beasts, philosopher and writer Christopher Preston explores creature comebacks. Some of these stories highlight the evolutionary advantages that animals have racked up over millennia, while others are marked by intensive human intervention. Along the way, Preston opens some big questions about conservation dilemmas, such as what to do when helping one...

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A lot of us learned basic ecology in primary school. Maybe we took a biology class in high school or secondary school and dug in a little more. We use terms like "niche" but do we really know what they mean? How much complexity does that little word cover, if you start to unpick it?...

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Birds carry out some of the most amazing feats of athleticism in the world. Hummingbirds cross the entire Gulf of Mexico, their tiny wings beating continuously for three days straight. A single bird will fly across the entire Pacific ocean in one go. What do we really know about bird migration, and how do we...

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In 1938, two botanists, Elzada Clover and Lois Jotter, made an ambitious voyage down the Colorado River driven by the desire to chronicle the plant life of the American Southwest. In her new book Brave the Wild River, science journalist Melissa Sevigny traces their expedition through the Grand Canyon, which led them through seething rapids...

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Humans are a roaming species. We've been traveling from continent to continent since our very earliest evolution. In fact, we've been doing it even before we were humans. This week, we're talking with archaeologist Radu Iovita about the ancient silk road, a travel network that was in use tens of thousands of years ago, and...

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Is there an insect more universally despised than the wasp? What have they done to incur so much of our ire? No one likes them. Well... almost no one. Seirian Sumner, Professor of Behavioural Ecology at University College London and cofounder of the Big Wasp Survey, is on a mission to improve the wasp's PR...

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Do you believe there's something Out There? What do our ideas of aliens say about what life is, how life could look and act? And what does it say about us, about what we think life needs, wants, and should be? We're talking with Jaime Green about her new book: The Possibility of Life: Science,...

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With fertilizers that supply phosphorus–what Asimov called “life’s bottleneck”– people broke the circle of life. Dan Egan’s new book The Devil’s Element traces the history of this essential element from curiosity to crop miracle. Egan documents the mayhem unleashed by a flood of phosphorus, from the Great Lakes to the Gulf of Mexico and discusses...

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Thousands of years ago, people crossed a land bridge from Siberia to Western Alaska and dispersed southward into what we now call the Americas. The story of exactly when that was, how they did it, and who they were has fascinated us for a long time as excavations have uncovered pieces of those stories. University...

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