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Yessi Pratiwi — March 20, 2009 / 6:49 pm
If you ask, “What animal that can see two different places without moving its neck?” Jackson Chameleon is the answer.
Each of this native African reptile eyes are able to move independently. The secret is the chameleon’s turret eyes. Unlike our eyes, which are sunken into protective, bony sockets, the Jackson’s eyes stick out from either side of its head on raised turrets. It upper and lower eyelids are joined, with only a pinhole large enough for the pupil to see through. More over, they can rotate and focus separately to observe two different objects simultaneously. It in effect gives them a full 360-degree arc of vision around their body.
When the chameleon spots a tasty meal with one eye, it swivels the other eye in the same direction. This gives the chameleon stereoscopic vision, or the ability to see a single image instead of two, allowing it to judge the distance between itself and its prey.
But hang on, The Jackson’s chameleon also has a “third eye” — a small spot on its head sensitive to violet and blue light. Although it can’t form images, this third eye, which is covered in scales, may help the chameleon tell when the sun is rising or setting.
What an amazing eyes ability to use when we hang out, ya? :)
Source: animal.discovery, allsands
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