PLoS Computational Biology, Vol. 3, No. 12. (1 December 2007), e246.
PLoS Biology, Vol. 5, No. 12. (1 December 2007), e339.
Animal Behaviour, Vol. 51, No. 4. (April 1996), pp. 733-738.
Animal Behaviour, Vol. 74, No. 4. (October 2007), pp. 965-976.
Animal Behaviour, Vol. 74, No. 4. (October 2007), pp. 1073-1084.
Animal Behaviour, Vol. 74, No. 4. (October 2007), pp. 837-846.
Animal Behaviour, Vol. 70, No. 5. (November 2005), pp. 1155-1170.
Behavioral Ecology and Sociobiology, Vol. 61, No. 8. (June 2007), pp. 1293-1302.
Behavioral Ecology and Sociobiology, Vol. 57, No. 3. (17 January 2005), pp. 197-214.
Proceedings of the Royal Society B: Biological Sciences, Vol. 270, No. 1524. (2003), pp. 1637-1643.
Science, Vol. 283, No. 5406. (26 February 1999), pp. 1272-1273.
Proceedings of the National Academy of Sciences, Vol. 102, No. 7. (15 February 2005), pp. 2267-2268.
Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 340, No. 1292. (29 May 1993), pp. 251-255.
Biol Rev Camb Philos Soc, Vol. 78, No. 4. (November 2003), pp. 575-595.
Trends in Neurosciences, Vol. 16, No. 11. (November 1993), pp. 430-436.
Animal Behaviour, Vol. 58, No. 5. (November 1999), pp. 921-931.
Proc Biol Sci, Vol. 271, No. 1556. (7 December 2004), pp. 2453-2457.
Anim Behav, Vol. 58, No. 4. (October 1999), pp. 841-851.