@article{article, title = {{Ultimate causes and the evolution of altruism}}, url = {{}}, year = {{2011}}, month = {{3}}, author = {{Marshall JAR}}, doi = {{10.1007/s00265-010-1110-1}}, volume = {{65}}, journal = {{BEHAV ECOL SOCIOBIOL}}, issue = {{3}}, pages = {{503-512}}, note = {{Accessed on 2025/06/27}}}