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On 24 November 1859, Charles Darwin published his seminal work On the Origin of Species, laying out what would later become the foundations of our understanding of evolution. Over 150 years later and many of Darwins ideas still underpin evolutionary theory. But a group of academics are beginning to challenge this with something they call the extended evolutionary synthesis. But is an update needed? And if so, why? More importantly, why have so many in the field branded the ideas of extended synthesis both unnecessary and counter-intuitive?

In search of answers, Nicola Davis speaks to one of key spokespeople for the extended synthesis theory, City College of New Yorks K.D. Irani professor of philosophy Massimo Pigluicci. We also hear about the potential similarities between learning theory and natural selection from the University of Southamptons Dr Richard Watson. Finally, evolutionary biologist Professor Joan Strassmann, the Charles Rebstock chair of biology at Washington University, St Louis, explains why she opposes this call for an update.

Excerpt from:

Is it time for an update to evolutionary theory? - Science Weekly podcast - The Guardian