Although similar to humans, they have long extensive lifespan that are hundreds, or maybe thousands of years and have lived on Earth since they first arrived. Banshees exist in female form only, they can have progeny (Sh'rian is the daughter of Queen Mab), however it is not revealed how exactly they procreate, it might be some sort of mystical parthenogenesis. bonded for life, even share their lifespan. There are many Banshee who have hair colours such as pink, purple, green and white.