Both sexes mature at about 5 meters long. There is thought to be a sex ratio of 67% males to 33% females. Little is known about the reproduction of this species because there does not seem to be a specific breeding season. The whales breed and calves are born all year round. The average lifespan is at least 35 years ( http://www.ims.usm.edu/~musweb/ziphcav.htm. Minasian et al. 1984, Watson 1981).
Breeding season: The whales breed year round
Key Reproductive Features: iteroparous ; year-round breeding ; gonochoric/gonochoristic/dioecious (sexes separate); viviparous
Average gestation period: 365 days.
Average number of offspring: 1.
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