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 A grey-headed Flying-fox (Pteropus poliocephalus), a native Australian bat, stretches its leathery wings as it flies high over Sydney's Botanical Gardens, 17 August 2005.
 A grey-headed Flying-fox (Pteropus poliocephalus), a native Australian bat, stretches its leathery wings as it flies high over Sydney's Botanical Gardens, 17 August 2005.

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Disease threatens American bats

They're a Halloween favorite, but why are scientists fearing for the existence of bats? Christiane Amanpour explains.

Disease threatens American bats

They're a Halloween favorite, but why are scientists fearing for the existence of bats? Christiane Amanpour explains.