Warrigal
SF VIP
- Location
- Sydney, Australia
Captive animals in well run zoos and nature reserves can be a useful gene bank for endangered species. In Australia we have had diseases that have threatened some of our native animals in the wild. Tasmanian devil numbers are dropping because of a nasty facial tumour that is passed on by biting. Since the devils are always snapping and snarling at each other over their food, this looked like their days in the wild were numbered. Scientists and vets studied the disease and found some individuals seemed to be immune. They were taken into captivity and bred with disease free devils in zoos and sanctuaries. The offspring are being released into the wild in the hope of increasing natural immunity to the cancer.
Koalas in certain parts of Australia are infected with chlamydia and numbers are declining. Again, zoos and reserves are very important in the fight to save the koala populations from this disease. It is a pity that they can't be as effective at persuading governments to preserve habitat because when the animals are squeezed into remnant bushland, diseases are spread more easily.
Well run zoos are part of a global effort to preserve biodiversity through breeding programs. Inbreeding is avoided by use of artificial insemination and by shipping breeding stock between zoos on different continents. If for no other reason, zoos are essential as a last defence against extinction of threatened and endangered species, including lions.
Koalas in certain parts of Australia are infected with chlamydia and numbers are declining. Again, zoos and reserves are very important in the fight to save the koala populations from this disease. It is a pity that they can't be as effective at persuading governments to preserve habitat because when the animals are squeezed into remnant bushland, diseases are spread more easily.
Well run zoos are part of a global effort to preserve biodiversity through breeding programs. Inbreeding is avoided by use of artificial insemination and by shipping breeding stock between zoos on different continents. If for no other reason, zoos are essential as a last defence against extinction of threatened and endangered species, including lions.