So how do you count more than 19,000 animals, large and small, for London Zoo's annual stock take?
Martin Stew went to find out.
London Zoo are counting all their animals today from the huge gorillas to the tiny ants.
Mark Habben, manager of the Regents Park zoo, explains why they do an annual stocktake.
All the animals are being counted at London Zoo today from the tiny leafcutter ants to the huge silverback gorillas.Read the full story ›
Squirrel monkeys at London Zoo got in on the action today as a film crew from ITN turned up to film them. The animals were intrigued by the camera equipment, and began climbing over it.
Zookeeper Teague Stubbington said: "The squirrel monkeys are one of the liveliest and most playful animals here and much like kids in the school holidays, we have to constantly find novel ways of keeping them entertained."
London Zoo is celebrating the arrival of a trio of tiny lizards - the first of their kind to ever be born in a UK zoo.Read the full story ›
It's a happy 16th birthday today for London Zoo's silverback gorilla, Kumbuka!
The seven-foot, 29 stone alpha male, who arrived at the zoo in May, will get specially-prepared treats to celebrate his big day.
Keepers at London Zoo say they are distraught by the death of their first tiger cub born in 17 years. The Sumutran tiger was just three weeks old. Today it was announced the cub - who hadn't yet been named - drowned in a pool inside the tiger enclosure. Lucrezia Millarini reports.
- Melati's pregnancy lasted around 105 days
- Zookeepers kept a careful watch on the first-time mother through hidden cameras
- The cub was too young to be sexed or named
- It was born six months after the opening of the new "tiger territory" at London Zoo
London Zoo says it believes Melati carried the cub outside, but keepers are unclear as to how the cub got into the pool.
Keepers are now reviewing the situation because it was not forseen that the mother would take the cub outside so early.