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You could be forgiven if you’re skeptical about the claims of an expedition team that just got back from Papua New Guinea. They include the discovery of a camouflaged gecko, a fanged frog, and a fish that makes grunting noises. But leave your skepticism at the door. We speak with Professor George McGavin of the Oxford University Museum of Natural History. Download MP3Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.