The 52-acre Taronga Zoo opened in 1916, where it is now home to more than 2,600 animals and 340 species. In 2000, the zoo began a $250 million overhaul, part of which involved the controversial export of five Asian elephants from Thailand for a breeding program. In 2009, the zoo became famous as the location of Australia’s first live elephant birth. The Taronga Conversation Society Australia works to promote animal conversation, including several breeding programs. Recently, the zoo placed 500 zoo-bred Southern Corroboree frog eggs into the wild in the Kosciuszko National Park.