Welcome to Episode 25 of Slightly Evolved! This week we talk to Dr Mark Ravinet, a researcher at the University of Oslo.

Mark takes us on a journey from his roots as a geographer to working on one of the most hotly debated topics in evolutionary biology: speciation. We discuss a recent targeted review he was the lead author of "Interpreting the genomic landscape of speciation", and talk about the quest and challenges to finding loci that contribute to reproductive isolation among populations.

You can find the review and the other commentaries in the special issue here: http://onlinelibrary.wiley.com/doi/10.1111/jeb.2017.30.issue-8/issuetoc

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You can find Mark on Twitter (twitter.com/Mark_Ravinet).