Mario Ludwig is a biologist and bestselling author. He is Germany's animal-expert, well-known due to his books, his regular TV appearances and his very successful podcast "Wie die Tiere". After receiving his diploma and doctorate, Mario worked as a research assistant at the Zoological Institute of the University of Heidelberg until 1992. Since 1993 he has been active in research and as an expert. In the same year, his successful career as an author of nature books began with "Tiere auf Wohnungssuche". His books have been nominated three times for the "Science Book of the Year". Mario Ludwig also became known for his columns for "Berliner Morgenpost", "Ein Herz für Tiere" and "Focus Online" as well as his articles in the magazines "Tierwelt Schweiz", "all4Pets", "Landkind" and the "Pforzheimer Zeitung", which are not only appreciated by animal lovers. In his weekly programme "Das Tiergespräch" at Deutschlandfunk Nova he presents exciting and unusual news from science. Through his numerous appearances on TV talk shows and other TV programmes such as Johannes B. Kerner, Planet Wissen, 3 nach 9 or Frank Elstner's Menschen der Woche (People of the Week), Mario is known to a broad public.