字幕列表 影片播放 列印英文字幕 - [Voiceover] In the forests of Southeast Asia, high up in the treetops, a mythical creature lives. It turns out dragons are real. It turns out dragons are real. So I have to call a biologist. - [Voiceover] I'm Anthony Russell, from the Department of Biological Sciences at the University of Calgary in Alberta, Canada. - [Voiceover] We're talking about a species of flying lizards. - [Voiceover] So it's called Draco Volans, which means flying dragon. - [Voiceover] Okay, these flying dragons, they are a little different from the dragons we see in movies. For starters, they're small. - [Voiceover] They are, they are. - [Voiceover] Only about eight inches long and they don't breath fire. But, they do fly. In a way. They're gliders, which means they have control of their descent and trajectory, but they don't have any power in it. - [Voiceover] For every one foot they go down in vertical distance, they'll be able to travel six feet along. - [Voiceover] And that's because they don't actually have wings. - [Voiceover] They're actually modifications of the ribs, so they're nothing to do with the legs and arms. - [Voiceover] Evolutionarily speaking, this has helped the lizards survive. They can escape attacks and they have a broader living zone. So they might not be dragon dragons. - [Voiceover] Though sometimes people name things because it's more dramatic effect. - [Voiceover] Well they're still incredible lizards. Actually, no, you know what? I'm still gonna call 'em dragons.