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DO YOU SEE WHAT I SEE?

DOGS

Human eyes have three types of color-detecting cells, but dogs just have two, and those pick up yellow and blue-to-ultraviolet light. So they don't see as much color as we do, but they aren't completely colorblind as the myth suggests.

HONEYBEES

These insects have compound eyes, which allow them to see up to 300 pictures per second (humans only get 65) and a range of ultraviolet light. However, they don't see the color red, but they do like purple, violet, and blue, which may explain why a lot of bee-friendly flowers are shades of purple.

TIGERS

These big cats have excellent night vision, about six times better than humans. This is because they have wide, rounded pupils that allow maximum light to enter the eye and larger lenses to capture more light. They don't have a huge range of color, but can detect even the slightest movements.

GIANT CLAMS

OK, so not what we think of when we think of animals with eyes. But clams have several hundred tiny pinhole eyes along the edge of their bodies. They have no lens, but do see three different colors. Their eyes mainly detect movement and they process visual information as colorful but undefined images.

BALD EAGLES

Their eyes are about the same size as a human's, so they fill most of their skull--and are larger than their brains. The large birds of prey see more colors than humans as well as ultraviolet light. They can see four to five times farther than we can.

FIDDLER CRABS

These tiny crustaceans boast 9,000 separate eye facets. Their eyes don't move, but they use each facet for different tasks, and this gives them almost 360-degree fields of vision. They see many colors, including some in the near-ultraviolet range.

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Title Annotation:et al.
Publication:Phi Kappa Phi Forum
Geographic Code:1USA
Date:Mar 22, 2020
Words:295
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