- Miled El Hajji. Modelling and optimal control for Chikungunya disease. Theory in Biosciences, 140(1):27-44, 2021.
- Deryc T. Painter, Bryan C. Daniels, Manfred D. Laubichler. Innovations are disproportionately likely in the periphery of a scientific network. Theory in Biosciences, 140(4):391-399, 2021.
- Douglas H. Erwin. Tempos and modes of collectivity in the history of life. Theory in Biosciences, 140(4):343-351, 2021.
- Eduardo Mizraji. Correction to: The biological Maxwell's demons: exploring ideas about the information processing in biological systems. Theory in Biosciences, 140(3):319, 2021.
- Colin Twomey, Andrew Hartnett, Matthew M. G. Sosna, Pawel Romanczuk. Searching for structure in collective systems. Theory in Biosciences, 140(4):361-377, 2021.
- Bryan C. Daniels, Manfred D. Laubichler, Jessica C. Flack. Introduction to the special issue: quantifying collectivity. Theory in Biosciences, 140(4):321-323, 2021.
- Margherita Raineri, Erki Tammiksaar. Scientific traditions in conflict: the Rusconi-von Baer controversy on the embryology of frogs and the development of the cell theory. Theory in Biosciences, 140(1):45-75, 2021.
- Mohamed El Mahdi Hacini, Djammel Hammoudi, Salih Djilali, Soufiane Bentout. Optimal harvesting and stability of a predator-prey model for fish populations with schooling behavior. Theory in Biosciences, 140(2):225-239, 2021.
- Himanshu Priyadarshi, Rekha Das. Complexities in viral replication strategies as a potential explanation for prevalence of asymptomatic carriers in Covid-19 infections: analytical observation on SARS-Cov2 genome characteristics. Theory in Biosciences, 140(3):241-247, 2021.
- Saikat Batabyal, Arthita Batabyal. Mathematical computations on epidemiology: a case study of the novel coronavirus (SARS-CoV-2). Theory in Biosciences, 140(2):123-138, 2021.