@article{Charmantier2007, author = {Charmantier, A. and Keyser, A.J. and Promislow, D.E.L.}, title= {First evidence for heritable variation in cooperative breeding behaviour}, year = {2007}, doi = {10.1098/rspb.2007.0012}, journal = {Proceedings of the Royal Society B: Biological Sciences}, volume = {274}, number = {1619}, pages = {1757--1761}, }