Alcock, J. (2013). Animal behavior: an evolutionary approach (10th ed). Sinauer Associates.
Begon, M., Townsend, C. R., Harper, J. L., & Harper, J. L. (2006). Ecology: from individuals to ecosystems (4th ed). Blackwell. https://ebookcentral.proquest.com/lib/uea/detail.action?docID=243556
Dawkins, R. (2006). The selfish gene (30th anniversary ed). Oxford University Press. https://ebookcentral.proquest.com/lib/uea/detail.action?docID=422874
Zimmer, C. (2014). The tangled bank: an introduction to evolution (Second edition). Roberts and Company.
