Dorthe Landschulz was born in Hamburg, Germany. She studied illustration there before continuing her training at the École nationale supérieure des arts décoratifs in Paris. She has been based in France since 2003 and now lives in Brittany, where she works as a freelance illustrator.
She has been working as a press cartoonist since 2011. Her cartoons are published in numerous newspapers and magazines, including Der Postillon, TAZ, Eulenspiegel and Le Monde. She also publishes a weekly cartoon in Stern magazine and is a regular contributor to the programme 28 minutes, broadcast on Arte. She is also the author of several collections of cartoons, including *L’humanité est foutue*, published in 2025, which is her first book in French.
On Facebook and Instagram, she posts her cartoons under the name ‘Ein Tag Ein Tier’. Her French-language Facebook page is called ‘La Loutre-Rhin’.