Iraide Ibarretxe-Antuñano is Professor of Linguistics at the University of Zaragoza. Her work focuses on language and cognition, semantic typology, sound symbolism, and Basque. Her most recent publications include the books Cognitive Linguistics and Translation (with A. Rojo); Lingüística Cognitiva (with J. Valenzuela); Language, Mind, and the Lexicon (with C. Inchaurralde and J.M. Sánchez-García); and Sound symbolism and motion in Basque.José-Luis Mendívil-Giró is Professor of General Linguistics at the University of Zaragoza. His research has focused on the theory of grammar and the nature and extent of linguistic change and diversity. He is the author of Origen, evolución y diversidad de las lenguas. Una aproximación biolingüística, and co-author (with Juan-Carlos Moreno Cabrera) of On Biology, History and Culture in Human Language. He has also edited (with C. Boeckx and M.C. Horno-Chéliz) Language, from a Biological Point of View.