Females become reproductively mature between 7 and 9 years of age. Indris breed once every two to three years. Births occur in December in the northern part of the range, and in May in the southern portion of the range.

Are indris monogamous?

The indri practices long-term monogamy, seeking a new partner only after the death of a mate. It lives in small groups consisting of the mated male and female and their maturing offspring. ... Like many other species of lemur, indri live in a female dominant society.

How long do indri lemurs live?

While the tails of most lemurs are approximately equal in length to their bodies, the indri has a very short tail—typically only about 2 in (5 cm) long. They live between 15 and 18 years in the wild, and do not fare well in captivity.