Behavior
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. In the more fragmented forests of their range, the indri may live in larger groups with several generations. Habitat fragmentation limits the mobility and capacity of these large groups to break into smaller units.
It is common for groups to move 300-700 m daily, with most distance travelled midsummer in search of fruit. The indri sleeps in trees about 10-30 m above ground and typically sleep alone or in pairs. It is common for young female indri's, occasionally adult females, to silently play wrestle anywhere from a few seconds up to 15 minutes. Members of a single group will urinate and defecate jointly at one of their many selected areas of defecation in their territory.
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