The heat in their summer months.
Yes and No because some captivity is for research and isn't harmful.Smuggling captivity can kill polar bears in less then a day
no, the only bears in Australia are koalas
They do it because polar bears are rare and are being hunted by poachers.
This depends greatly on the species. Generally animals live much longer in captivity. While some bears can reach the mid-thirties there have been recorded cases of bears living up into their forties.
Koalas are not bears; nor do they hunt. Koalas are marsupials, and entirely unrelated to bears. They are herbivorous, living almost exclusively on the leaves and flowers of certain species of eucalyptus in Australia.
no, the only bears in Australia are koalas
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There are no bears in Antarctica (polar bears live in the Arctic), and their are no true bears in Australia (Koala Bears are marsupials, and not really bears at all).
Koalas are not bears. Bears might eat koalas, but I doubt a bear has ever seen a koala. Koalas are indigenous to Australia and there are no bears in Australia.
polar bears don't live in Australia. penguins do
Polar bears don't live in Australia. So no.
Andean bears (Spectacled bears): 30 to 35 years for females and 36 to 40 for males in captivity