When did people arrive in the Americas? New evidence stokes debate
Nature Podcast
podcast@nature.com
4.5 • 893 Ratings
🗓️ 22 July 2020
⏱️ 42 minutes
🧾️ Download transcript
Summary
New evidence may push back the date on human arrival to the Americas, and an examination of science’s flaws.
In this episode:
00:59 Ancient Americans
Two papers suggest that humans were present in the Americas thousands of years before many people have thought. We examine the evidence. Research Article: Ardelean et al.; Research Article: Becerra-Valdivia and Higham; News and Views: Evidence grows that peopling of the Americas began more than 20,000 years ago
10:44 Coronapod
We discuss the latest results from vaccine trials around the world, and controversy in the US as COVID-19 data collection moves out of the CDC. News: Coronavirus vaccines leap through safety trials — but which will work is anybody’s guess
24:38 Research Highlights
How being green makes things easy for some frogs, and how waves will be affected by climate change. Research Highlight: How frogs became green — again, and again, and again; Research Highlight: Extreme Arctic waves set to hit new heights
27:11 How can science improve?
A new book highlights some of the flaws of how science is done. We caught up with the author to find out his thoughts on how science can be cleaned up. Books and Arts: Fraud, bias, negligence and hype in the lab — a rogues’ gallery
35:54 Briefing Chat
We take a look at some highlights from the Nature Briefing. This time we discuss a puzzling new insight into the expansion of the Universe, and an update to Plan S that will allow open-access research to be published in any journal. Nature News: Mystery over Universe’s expansion deepens with fresh data; Nature News: Open-access Plan S to allow publishing in any journal
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Transcript
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| 0:00.0 | Nature. |
| 0:02.0 | An experiment. |
| 0:05.0 | Why is Blight so far? |
| 0:08.0 | Like it sounds so simple. |
| 0:09.0 | They had no idea. |
| 0:11.0 | But now the data's people. |
| 0:12.0 | I find this not only refreshing, but at some level astounding. |
| 0:20.0 | Nature. |
| 0:25.8 | Welcome back to the Nature podcast. |
| 0:30.8 | This week, evidence of humans in the Americas 30,000 years ago. |
| 0:34.2 | And exposing the flaws in the modern scientific method. |
| 0:35.6 | I'm Charmanya Bundell. |
| 0:46.5 | And I'm Nick How. As we mentioned last week, our pandemic spin-off podcast, Corona Pod, is now part of this show. |
| 0:53.0 | So if you just want to hear the latest coronavirus updates, |
| 0:55.9 | then you can skip ahead to 1059. |
| 0:59.4 | Coming up first, though, |
| 1:01.0 | I've been looking into some stone tools and new modelling analyses |
| 1:04.5 | that suggest humans may have lived in the Americas |
| 1:07.6 | thousands of years earlier than many people thought. Now, the subject of when humans first arrived in the Americas thousands of years earlier than many people thought. |
| 1:11.9 | Now, the subject of when humans first arrived in the Americas is a hot debate for archaeologists. |
| 1:17.8 | Well, it's actually a long debated topic as well. This is an issue that first arose in the |
| 1:23.3 | Americas in the 1870s. This is David Meltzer, an archaeologist who investigates when humans arrived in the Americas. |
... |
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