born 1989 in Bergheim (Erft), lives in Essen. He is an enthusiastic biodiversity researcher and chairman of the Krefeld Entomological Society. Thomas Hörren played a key role in the "Krefeld Study", which publicised insect mortality. He successfully communicates his science in the media and on social media - as @totholz.thomas, he has a large following on Instagram. His first book "LIFE IN DEADWOOD" was published in 2024.