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It's Okay to Be Smart
Are Some Species More Important Than Others?
We explore the universal rules of life that tie together Earth’s living systems. Traveling from Africa’s Serengeti plains to the nearly extinct prairies of the western U.S. to discover the unexpected species that determine the very existence of these places. Can an ecosystem survive without its keystone species? Can we restore endangered human cultures by bringing back a nearly-extinct ecosystem?
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Stay informed. Stay cautious, but not scared.
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Do the supposed advantages for springing forward and falling back hold up?
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The sunlight we see is tens of thousands of years old. How is that possible?
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If humans are so smart, why are our babies so… un-smart?
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How will we do a Green Revolution 2.0?
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Can trees really save us from climate change?
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Could You Be a Chimera?
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I went to NASA in Houston to talk to astronaut Don Pettit.
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Why is ice slippery? It's a more complicated answer than it seems!
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Recycling is broken. Here's how we can fix it.
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People say insects are the food of the future.
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Here’s a rundown of a few of the human body’s biggest evolutionary fails!