Words to know before you read
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We see more colors than some animals, but some
animals see colors we cannot.
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- Infrared- invisible light rays beyond the red end of the
visible spectrum.
- Ultraviolet- invisible light rays just below the violet end
of the spectrum.
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| ANIMAL |
THE COLORS THEY SEE |
| SPIDERS (jumping spiders) |
ULTRAVIOLET AND GREEN |
| INSECTS (bees) |
ULTRAVIOLET, BLUE, YELLOW |
| CRUSTACEANS (crayfish) |
BLUE AND RED |
| CEPHALOPODS (octopi and squids) |
BLUE ONLY |
| FISH |
MOST SEE JUST TWO COLORS |
| AMPHIBIANS (frogs) |
MOST SEE SOME COLOR |
| REPTILES (snakes) |
SOME COLOR AND INFRARED |
| BIRDS |
FIVE TO SEVEN
COLORS |
| MAMMALS (cats) |
TWO COLORS BUT
WEAKLY |
| MAMMALS (dogs) |
TWO COLORS BUT
WEAKLY |
| MAMMALS (squirrel) |
BLUES AND YELLOWS |
| MAMMALS (primates-apes and
chimps) |
SAME AS HUMANS |
| MAMMALS (African monkeys) |
SAME AS HUMANS |
| MAMMALS (South American
monkeys) |
CAN'T SEE RED WELL |
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