1. Allen, W. L., Cuthill, I. C., Scott-Samuel, N. E., & Baddeley, R. (2011). Why the leopard got its spots: Relating pattern development to ecology in felids. Proceedings of the Royal Society B, 278, 1373–1380. https://doi.org/10.1098/rspb.2010.1734.
2. Fraser, A. (2012). Feline behaviour and welfare. Oxfordshire: CAB International.
3. Hast, M. H. (1989). The larynx of roaring and non-roaring cats. Journal of Anatomy, 163, 117–121. Retrieved from https://onlinelibrary.wiley.com/journal/14697580.
4. Kitchener, A. C., Breitenmoser-Würsten, C., Eizirik, E., Gentry, A., Werdelin, L., Wilting, A., Yamaguchi, N., Abramov, A. V., Christiansen, P., Driscoll, C., Duckworth, J. W., Johnson, W., Luo, S.-J., Meijaard, E., O’Donoghue, P., Sanderson, J., Seymour, K., Bruford, M., Groves, C., Hoffmann, M., Nowell, K., Timmons, Z., & Tobe, S. (2017). A revised taxonomy of the Felidae. The final report of the Cat Classification Task Force of the IUCN/SSC Cat Specialist Group. Cat News Special Issue, 11, 1–80. Retrieved from https://repository.si.edu/bitstream/handle/10088/32616/A_revised_Felidae_Taxonomy_CatNews.pdf?sequence=1&isAllowed=y.
5. O’Brien, S. J., & Johnson, W. E. (2007). The evolution of cats. Scientific American, 297, 68–75. Retrieved from http://www.bio-nica.info/biblioteca/O%27brien2007EvolutionCats.pdf.