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RESEARCH PRODUCT

Evolution of metaphors: Phylogeny of oil slick cartoons in Spanish press

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The main purpose of this article is to analyze the evolution of a metaphor set over time. By studying cartoons about the oil slick caused by the Prestige oil tanker in 2002 on Spanish shores and the subsequent court decision in 2013, we observe a progressive metaphor diversification and evolution, with the oil slick as an old common trait. Additionally, using basic cladistical methods, we propose a phylogenetic tree for the metaphor set, from a common ancestor to the subsequent diversification regarding news content. These results show that phylogenetic models can be very helpful in understanding the evolution of conceptual metaphors, and this method of analysis could even be a methodological pattern for the study of other similar events.