melbourne has/had a multi-female one male group for years but oddly listed intentions to switch to bachelors only. the region really needed a bachelor group someplace and maybe melbourne put their hand up? anyhow, i overheard someone talking about the "bachelor lemurs settling in" so i'm assuming melbourne recently sent its 5 lemurs off elsewhere in exchange for some males.
where this exchange has taken place with id'e like to know.
they actually have two lemur islands at present as the siamang family have moved to the orang exhibit. i had half expected the zoo to keep breeders on one side and bachelors on the other but its not so. instead a bridge has been added, giving the lemurs both islands (both nice sized islands with big trees).
on another note, melbourne is finally looking at breeding ruffs again. they have a trio, though don't think they have yet been integrated - an unusual type of grouping to attempt for this species.