Fossa Reproduction and Life Cycles
Like many solitary carnivores, Fossas only come together to mate during the breeding season in September and October. After a gestation period that lasts for around three months, the female Fossa gives birth to usually two cubs that are very underdeveloped at birth and do not open their eyes until they are between two and three weeks old. The young are cared for by their mother and begin to eat solid foods by the time they are 12 weeks old, although they are not weaned for another month. Young Fossas take almost two years to grow to their adult size and then another two until they are able to reproduce themselves. They can live for up to 17 years although many reach much younger ages.