The evolution of parental care in freshwater leeches. - Ulrich Kutschera; Peter Wirtz (Theory Biosci., 2001)

A comparative analysis of the Darwin-Wallace papers and the development of the concept of natural selection. - Ulrich Kutschera (Theory Biosci., 2003)

Endosymbiosis, cell evolution, and speciation. - Ulrich Kutschera; Karl J. Niklas (Theory Biosci., 2005)

Molecular phylogeny of selected predaceous leeches with reference to the evolution of body size and terrestrialism. - Ina Pfeiffer; Bertram Brenig; Ulrich Kutschera (Theory Biosci., 2005)

Photosynthesis research on yellowtops: Macroevolutionn in progress. - Ulrich Kutschera; Karl J. Niklas (Theory Biosci., 2007)

Macroevolution via secondary endosymbiosis: a Neo-Goldschmidtian view of unicellular hopeful monsters and Darwin's primordial intermediate form. - Ulrich Kutschera; Karl J. Niklas (Theory Biosci., 2008)

Methylotrophic bacteria on the surfaces of field-grown sunflower plants: a biogeographic perspective. - Stefan Schauer; Ulrich Kutschera (Theory Biosci., 2008)

Symbiogenesis, natural selection, and the dynamic Earth. - Ulrich Kutschera (Theory Biosci., 2009)

In the shadow of Darwin: Anton de Bary's origin of myxomycetology and a molecular phylogeny of the plasmodial slime molds. - Thomas Hoppe 004; Ulrich Kutschera (Theory Biosci., 2010)

The ornithologist Alfred Russel Wallace and the controversy surrounding the dinosaurian origin of birds. - Nizar Ibrahim; Ulrich Kutschera (Theory Biosci., 2013)

Alfred Russel Wallace (1823-1913): the forgotten co-founder of the Neo-Darwinian theory of biological evolution. - Ulrich Kutschera; Uwe Hoßfeld (Theory Biosci., 2013)

Alfred Russel Wallace and the destruction of island life: the Iguana tragedy. - Ulrich Kutschera; Simon Kleinhans (Theory Biosci., 2013)

Metabolic scaling theory in plant biology and the three oxygen paradoxa of aerobic life. - Ulrich Kutschera; Karl J. Niklas (Theory Biosci., 2013)

Leeches of the genus Helobdella as model organisms for Evo-Devo studies. - Ulrich Kutschera; David A. Weisblat (Theory Biosci., 2015)

The evolution of the plant genome-to-morphology auxin circuit. - Ulrich Kutschera; Karl J. Niklas (Theory Biosci., 2016)

From Goethe's plant archetype via Haeckel's biogenetic law to plant evo-devo 2016. - Karl J. Niklas; Ulrich Kutschera (Theory Biosci., 2017)

Systems biology of eukaryotic superorganisms and the holobiont concept. - Ulrich Kutschera (Theory Biosci., 2018)

Plasmodial slime molds and the evolution of microbial husbandry. - Ulrich Kutschera; Thomas Hoppe 004 (Theory Biosci., 2019)

Ernst Haeckel (1834-1919): The German Darwin and his impact on modern biology. - Ulrich Kutschera; Georgy S. Levit; Uwe Hoßfeld (Theory Biosci., 2019)

On the historical roots of creationism and intelligent design: German Allmacht and Darwinian evolution in context. - Elizabeth Watts; Ulrich Kutschera (Theory Biosci., 2021)

Phenotypic plasticity in plasmodial slime molds and molecular phylogeny of terrestrial vs. aquatic species. - Thomas Hoppe 004; Ulrich Kutschera (Theory Biosci., 2022)