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Flying geckoGeckos have eyesight comparable to a cat, giving them the best eyesight of all lizards. The flying gecko has an unusual scalloped pupil. When fully contracted, the pupil can close completely—except for a few tiny pinholes where the scalloped edges do not quite meet. What's different about the nocturnal eye? (back) Photo: Visuals Unlimited/© Joe McDonald. Night Vision | Camera that Caught a Leopard Behind the Scenes | Seeing through Camouflage Resources | Transcript | Site Map | Leopards Home Editor's Picks | Previous Sites | Join Us/E-mail | TV/Web Schedule About NOVA | Teachers | Site Map | Shop | Jobs | Search | To print PBS Online | NOVA Online | WGBH © | Updated November 2000 |