Parents puzzled over new addition
A cuddly baby monkey has been gingerly getting used to its home at a world-famous zoo.
The flame-haired rare primate - nicknamed Tango - was born at ZSL London Zoo on September 1 to first-time mother Lu Lu and father Neo.
Both parents have black fur but little Tango is bright orange, making it tricky to see the family resemblance.
The youngster, who is yet to be sexed, spends most of its time snuggled up to Lu Lu, but its auntie Lee Lee also helps out with the babysitting.
Zookeeper Kathryn Sanders said: "Baby Tango is currently rocking the redhead look, but it won't actually be ginger for very long.
"Its fur will begin to darken at around three months of age, and they are usually completely black by the time they reach six months old."
Francois' langurs are one of the world's rarest monkeys, and originate from north east Vietnam and China.
Classed as critically endangered, their populations are declining rapidly because of habitat loss.