Genetics and Sex
A study carried out by Moore et al. suggests that sexual differentiation isn’t dependent only on hormones that are secreted by the gonads. Genetic sex-determining factors also play a critical role in the sexual differentiation process. These genetic factors may later go on to activate hormones secreted by the gonads. More importantly, these genetic factors may be responsible for the differences between an organisms’ sexuality as seen in the animal kingdom. This suggests that these inherited factors may be responsible for the varying degrees of sexuality observed and can be influenced by the environment as well as other physiological factors to develop a unique organism.
Read more about this topic: Animal Sexual Behaviour