The Male's roar is deeper and louder than the females. Lions roar to tell the other lions where they are at.
Lions are also facing human threats such as population growth. As well as hunting, poisoning and poaching by livestock ranchers.
For instance, males of the now extinct North African Barbary lion (P.l. leo) and South African Cape lion (P.l. melanochaita) were known for their huge manes extending behind the shoulders and reaching the underside of their belly, which was used to identify and justify their subspecies status .