London Zoo has witnessed the first birth of a tiger cub in 17 years - and everything was captured on hidden cameras.
A five-year-old Sumatran tiger called Melati welcomed her baby after a six minute labour, said Zoological Society London (ZSL).
The 105 day pregnancy was kept secret by zookeepers as they wanted to keep a careful watch on the mother, without disturbing her. The gender of the cub remains unknown.
The cub was born six months after the opening of the new "tiger territory" at London Zoo, designed to encourage breeding of the critically endangered sub-species of tiger.
Zookeeper Paul Kybett said everyone at the zoo was "over the moon" about the birth.
The cub is the grandchild of the zoo's last tiger cub, Hari, the father of Melati. The cub's father is five-year-old Jae Jae, who is playing no part in taking care of the new arrival.