Jelle Reumer is a professor of Vertebrate Palaeontology at Utrech University. Although Jelle's scientific interest focusses on Tertiary and Quaternary Mammal Palaeontology, he is also interested in science communication and urban fossils, as he often shows through his Twitter account (@JelleReumer). Jelle has recently published "Kijk waar je loopt! - over stadspaleontology", which can be loosely translated as "Watch your step! - About Town Palaeontology".