Zoo Welcomes UKs First Ever Koala Joey!

September 19, 2013 § Leave a comment

Keepers are excited to announce that the UK’s first ever koala joey has been born at Edinburgh Zoo. An amazing testament to dedicated and skilled zoo keepers, first time mum two-year-old Alinga (pictured) only arrived at the Zoo earlier this year, before being introduced to male Goonaroo in April.

Donald Gow, Senior Keeper for Primates, Hoofstock and Koalas at Edinburgh Zoo says: “We are all immensely excited by the birth of the UK’s first ever koala joey. I have worked with the Zoo’s koalas for the past eight years and they require a lot of specialised care. Koalas are very sensitive creatures with a very selective diet and the husbandry can be extremely challenging. As they are solitary animals, it takes an expert eye to know how to successfully introduce a male and female together for breeding. There is a lot of dedication and skill involved in caring for koalas, and it is a significant achievement for everybody involved.”

Koalas have a gestation period of only 30-35 days and the birth of the joey is thought to have taken place in mid-May. However, koala joeys are extremely underdeveloped when first born – measuring around 2cm long (the size of a jelly bean), blind, with no ears and no fur – and spend a further six months growing inside their mother’s pouch. The pouch has a powerful muscle to prevent the joey from falling out and, in addition to milk, the joey will suckle on a substance called ‘pap’, a special type of dropping produced by the mother which contains vital micro-organisms necessary for digesting eucalyptus leaves when it is older.
Edinburgh Zoo is the only Zoo in the UK to have koalas and this new arrival is testament to the Zoo’s expertise, animal husbandry and experience that this species requires. The Zoo has been part of the European breeding programme for eight years and has originally housed young male koalas until they were sexually mature and moved to other collections for breeding. Alinga is the Zoo’s first female koala and to have successfully bred with her so quickly is an immense achievement for the keepers.

Alinga is very relaxed with her keepers and has recently allowed us to start feeling her pouch. The joey currently weighs approximately 100 to 150 grams and is expected to first pop its head out of the pouch by mid-October. The joey will start to climb onto Alinga’s belly around mid-November – when it weighs around 400 grams – and this is when visitors are likely to be able to see it. Around December it will then move onto her back and zoo keepers will weigh, sex and name the joey. Alinga will carry the joey around on her back until it is around twelve months old. Once the joey is sexually mature it will join the European breeding programme.

Koala numbers are in decline throughout the eastern coast of Australia due to habitat loss and it is very significant for a successful breeding programme be established outside of Australia. The birth of the UK’s first koala joey will help cement Britain’s role within this breeding programme as well as raise awareness on the need to protect this species.

Alinga and her joey – along with the two male koalas, Goonaroo and Yabbra – can be seen at the Zoo’s newly revamped Koala Territory.


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