We are pleased to announce that Dr Taylor Rycroft of the Environmental Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, MS, USA has won the ALTEX Prize 2021 as first author of the article "AOPERA: A proposed methodology and inventory of effective tools to link chemicals to adverse outcome pathways". The article was selected by the ALTEX Editorial Board, the Board of ALTEX Edition and the ALTEX editorial office as the best article published in ALTEX during 2020. The award was presented on September 2 at the 11th World Congress on Alternatives and Animal Use in the Life Sciences in Maastricht in 2021.

The ALTEX Prize is awarded annually and is kindly sponsored by the Doerenkamp-Zbinden Foundation.