TY - JOUR T1 - Experimental evidence for kin-biased helping in a cooperatively breeding vertebrate. JO - Proc Biol Sci UR - http://eprints.whiterose.ac.uk/1384/ PY - 2001/10/22 AU - Russell AF AU - Hatchwell BJ ED - DO - DOI: 10.1098/rspb.2001.1790 VL - 268 IS - 1481 SP - 2169 EP - 2174 Y2 - 2024/12/26 ER -