Segments in this Video

The Human Eye (03:49)


Sight is the most important sense for many animals; eyes distinguish proportions, shades, and colors. By calculating the images from both eyes, the brain can interpret perspective and distance. Anatomical parts include iris, pupil, crystalline lens, retina, optical nerve, rods, and cones.

Animals (03:45)

Some animals do not see but are sensitive to light. Others need excellent sight to hunt. Learn about different species unique vision that has adapted to its needs.

Insects (01:35)

Insects have compound eyes resulting in mosaic vision. The praying mantis needs 1/500th of a second to trap prey.

Summary (03:10)

The human eye can distinguish up to 7 million colors, proportions, shades, colors, and perspective. Learn the parts of the eye and their functions. Single-celled animals only distinguish the presence of light. Some animals have a highly developed sense of sight.

Credits: The Sense of Sight (00:39)

Credits: The Sense of Sight

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The Sense of Sight

Part of the Series : Just the Facts Senses Series
3-Year Streaming Price: $99.95



The sense of sight is crucial to survival for many species on planet Earth, including humankind. Learn about the human eye’s characteristics and behavior. We’ll also discuss the eyes of all sorts of animals.

Length: 15 minutes

Item#: BVL155138

Copyright date: ©2013

Closed Captioned

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Not available to Home Video, Dealer and Publisher customers.