Fruit batsFruit bats are far from blind. In fact, they rely primarily on their eyes for navigation—unlike most bats, who navigate by echolocation. The retina of the fruit bat is folded, which provides more room for light-sensitive rods. (For more on rods and cones, read on.)
What's different about the nocturnal eye?
Photo: Visuals Unlimited/© Brian Rogers.
Night Vision | Zoology After Dark
Resources | Guide | Transcript | Night Creatures 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