How Many Southern Resident Orcas Are Left 2024. When southern residents were federally listed in 2005, there were just 88 left. Such a small population can lead to inbreeding and other reproductive issues, which.
So dire is the state of the southern residents —. So dire is the state of the southern residents — there are only 74 left — that it may be time to consider more drastic interventions, including preventive vaccination of.