Testicular descent usually occurs between the middle and the end of detal development. In horses this can be in very late pregnancy or even after birth. In canines it can be up to 8 days post partum. In other species including whales and elephants, the testes will remain in their original positions and do not descend. For further information regarding testicular descent, please see [[Testes_and_Epididymis_-_Anatomy_%26_Physiology#Testicular_Descent|here]]. | Testicular descent usually occurs between the middle and the end of detal development. In horses this can be in very late pregnancy or even after birth. In canines it can be up to 8 days post partum. In other species including whales and elephants, the testes will remain in their original positions and do not descend. For further information regarding testicular descent, please see [[Testes_and_Epididymis_-_Anatomy_%26_Physiology#Testicular_Descent|here]]. |