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Tom's SciCast
Tom's SciCast episodes
- 35. Did The Cenozoic Era End On September 1, 1914?
Why do I believe the current geological era that began when the dinosaurs went extinct 65 million years ago came to an abrupt end on September 1, 1914. I make my case that we ended one era while starting a new one where invasive species will play a large role in the future of life on Earth. I also speculate on the future of humanity as we go forward into an uncharted future.
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58 min - 34. What would it mean to find alien life? Exploring life in the Universe Part 4
How would finding alien life, whether microbes or advanced civilizations, change how we think about ourselves in the universe? Would it matter if alien life looked like us or radically different?
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53 min - 33. Are we alone in the universe? Exploring life in the universe Part 3
Is the universe teaming with life, or is life on the Earth unique? Join me as I discuss the possibility of life from microbes to intelligent life in the universe along with the current limits of our knowledge.
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44 min - 32. Where might we find life in the solar System? Exploring life in the universe Part 2
Is Earth the only place in our solar system with life or is it wide spread? In this podcast, I discuss what life is, what conditions are needed for life to start, and places in the solar system where we might find life and why that would be important.
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44 min - 31. How life is connected to the universe: Exploring life in the universe Part 1
We are star dust. But what exactly does that mean? Learn how life is connected to the universe going back to the Big Bang.
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25 min - 30. How Science Works: What we learned from studying exercise and weight loss
Have you ever wondered why you didn't lose weight when you started a new exercise program? Learn how science has led to major changes in how we understand the role of exercise on weight loss and our health.
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46 min - 29. Trophic Cascades and Ripple Effects in Ecosystems
How did the introduction of a lake trout in Yellowstone reduce elk populations? How did the re-introduction of wolves in Yellowstone improve stream quality and songbird populations. I take a closer look at how how the loss or addition of a single species can ripple across the landscape.
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27 min - 28. A closer look at evolution by natural selection
Why do some animals remain unchanged for hundreds of millions of years or why do some evolve quickly with beautiful feathers or intricate songs. Listen in as I cover the different types of selection causing the diversity we see today including directional, stabilizing, disruptive, balancing, and sexual selection.
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1 hr 12 min - 27. Some things you didn't know about roots and leaves
Some roots don't grow in soil and some leaves eat insects. Discover the amazing things that roots, shoots, and leaves can do. Plants are cool!
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37 min - 26. Plants, the unsung hero of our world
Plants have had an enormous influence on the evolution of life on Earth. Learn how plants altered ancient climates, triggered the evolution of reptiles and mammals (amniotes), provide us with important medicines, and just make us feel better.
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35 min
About Tom's SciCast
From the publisher's feed
Let's explore the universe while pushing the limits of what we know with our imaginations, some speculation, and philosophy. A podcast about all things science. Stay Curious!