In the past, I have worked in the Behavioural Biology group at Leiden University in the Netherlands (2007-2008), and the Language Evolution and Computation Research Unit and the Institute of Cell, Animal and Population Biology (now the Institute of Evolutionary Biology) of the University of Edinburgh (2002-2004) in Scotland, where I worked on a PhD thesis on “The Major Transitions in the Evolution of Language”. Before that, I was a research assistant at the Artificial Intelligence Lab of the Vrije Universiteit Brussel in Brussels, Belgium (2000-2002), where I worked on the project “Origins of Language and Meaning”, briefly at the Sony Computer Science Laboratory – Paris in France (2000), and in the Theoretical Biology group of the University of Utrecht, the Netherlands (1998-1999).