Dublin Zoo was transformed in 2000 thanks to £15 million from the government and a 30-acre gift of land from Áras an Uachtaráin, which meant that it effectively doubled in size.
Reporter Sharon Ní Bheoláin visits the Zoo in Dublin's Phoenix Park to see how conditions have changed for the animals.
For many years there had been criticism of how some animals had been housed. Zoologist Emma Seale explains the benefits of the new enclosure for bears which has tripled in size. A new African plains area provides more open areas where animals have far more space.
Director of Dublin Zoo Peter Wilson explains how this greater space will mean that animals can be put together in the correct social groupings and will allow for an increase in the number of animals in each group.
Zoologist Brendan Price stresses the need for independent monitoring of how Dublin Zoo is looking after the animals that it houses.
An RTÉ News report broadcast on 8 August 2000.