Why did different sexes evolve? It’s a question as old as biology, but Prof. Dr Elvira Hörandl (University of Göttingen), with the help of biochemist Dr Franz Hadacek, may have discovered an important piece of the answer.
Associated article: Oxygen, life forms, and the evolution of sexes in multicellular eukaryotes
https://www.nature.com/articles/s41437-020-0317-9