A positive feedback between natural and sexual selection; modeling surface temperature changes over the past 1500 years; following the stimulus funding for U.S. science agencies; and more. (37 minutes)
Tags / natural selection
Tagged with “natural selection”
(5)
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Sciencemag.org Podcast: Sexual Selection; Medieval Climate Anomalies; Stimulus Funding
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Professor Christopher Dye: Are Humans Still Evolving?
Homo sapiens have been around for 250,000 years - surely long enough to have become fully evolved?
It was thought that the dramatic extension of life spans during the 20th century eliminated natural selection, but new evidence shows that to be false.
Will selection always be natural, or could postmodern also mean posthuman?
http://fora.tv/2009/03/26/Professor_Christopher_Dye_Are_Humans_Still_Evolving
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The Evolution of Evolution
Scientific American Editor in Chief John Rennie discusses the special January issue of the magazine, which focuses on evolution—2009 being the 200th anniversary of the birth of Darwin and the 150th anniversary of the publication of The Origin of Species. Subjects in the issue include the importance of natural selection, the sources of genetic variability, human evolution’s past and future, pop evolutionary psychology, everyday applications of evolutionary theory, the science of the game Spore, and the ongoing threat to science education posed by creationist activists. Plus, we’ll test your knowledge about some recent science in the news.
http://www.sciam.com/podcast/episode.cfm?id=the-evolution-of-evolution-09-01-07
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Keith Stanovich - Robot’s Rebellion: Finding Meaning in the Age of Darwin
Keith Stanovich talks about the implications of universal Darwinism. Can natural selection explain just about anything? Pretty much.
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Howard Bloom’s “Global Brain” 10 Years On
Many of us feel that the Web is ushering in a new era of global consciousness. But Howard Bloom thinks life has been a collective mind from the very beginning. He made the case in his book "Global Brain: The Evolution of Mass Mind From the Big Bang To the 21st Century." Host Jon Udell speaks with Bloom who reviews the themes of that book — group selectionism, complex adaptive systems, collective learning — and considers what has, and hasn’t, changed since the book was published in 2000.