Morato, R. G., Guimarães, M. A. B. de V., Ferreira, F., Verreschi, I. T. do N. and Barnabe, R. C. (1999) “Reproductive characteristics of captive male jaguars (Panthera onca)”, Brazilian Journal of Veterinary Research and Animal Science, 36(5), pp. 262-266. doi: 10.1590/S1413-95961999000500008.