How many years does a SEAL live?
How long do harbor seals live? The average life span for harbor seals in the wild is fifteen years. The average life span for seals in captivity is twenty years. How long can a seal stay on land? Seals are semi-aquatic, which means they often spend a portion of each day on land. Seals need to haul out for a variety of reasons: to rest, give birth, and molt (annual shedding of old hair).