@inbook{inbook, title = {{Fitness consequences of helping}}, publisher = {{Cambridge 小欧视频 Press}}, url = {{}}, year = {{2004}}, month = {{2}}, author = {{Dickinson JL and Hatchwell BJ}}, doi = {{10.1017/cbo9780511606816.004}}, isbn = {{9780521822718}}, pages = {{48-66}}, note = {{Accessed on 2025/04/11}}}