Valentí Rull is a biologist with a PhD in paleoecology (1990). He is a Tenured Scientist of the Spanish Council for Scientific Research (CSIC) at the Institute of Earth Sciences Jaume Almera, Barcelona. He uses paleocological evidence to study the type and characteristics of biotic responses to environmental shifts, the natural and anthropogenic drivers of ecological change and the role of tectonics and environmental change on the origin of biodiversity. He also works on the contribution of paleoecology to biodiversity conservation. Dr. Rull has conducted his research on several temperate (Pyrenees, Azores Islands), tropical (Andes, Orinoco delta, Maracaibo basin, Gran Sabana, Pantepui) and subtropical (Easter Island) regions.