Perth Zoo funds raised have been used for the conservation of Sumatran orangutan, Sumatran tiger, Sumatran elephant, African painted dog, sun bears, tree kangaroos, Javan gibbons and Australian native species. More than $881,000 has been raised since the program began. Working with the Department of Environment and Conservation, Perth Zoo breeds threatened Western Australian animal species for release into managed areas of habitat in the wild as part of its Native Species Breeding Program. As of 2011, Perth Zoo breeds numbats, western swamp tortoises, dibblers, woylies and threatened Western Australian frog species. The numbat ("Myrmecobius fasciatus") Western Australia's mammal emblem and one
Hip replacement (animal) on at a time and allowed to heal before the other is replaced. This ensures that there is always the maximum natural support during the healing process, although bilateral (double) hip replacements are possible and can be performed if appropriate. Some vets will recommend hip replacement at any age over puberty, if suitable conditions are met. Others view it as a surgery to be avoided at all costs unless there is no alternative. The issue here appears to be threefold: consideration of cost, avoidance of surgery where possible, and historical reasons that this has usually in the past been a