@article{article, title = {{Experimental evidence for kin-biased helping in a cooperatively breeding vertebrate.}}, url = {{http://eprints.whiterose.ac.uk/1384/ }}, year = {{2001}}, month = {{10}}, author = {{Russell AF and Hatchwell BJ}}, doi = {{10.1098/rspb.2001.1790}}, volume = {{268}}, journal = {{Proc Biol Sci}}, issue = {{1481}}, pages = {{2169-2174}}, note = {{Accessed on 2025/05/29}}}