Showing posts with label Vision. Show all posts
Showing posts with label Vision. Show all posts

Saturday, October 10, 2026

Vision

  







H U M A N      E Y E


The eye senses light and passes along this information

to the brain.  The mind's visual cortex receives these

impulses and constructs from them your view of reality.

The mind relies on prior experience to fill in gaps that

may occur in transmission.  It also collaborates with the

emotional center of the mind to provide editorial guidance.

Stumbling upon a rotting carcass covered in maggots

provides a splendid opportunity to respond with a 

gagging sense of revulsion.







B A L D      E A G L E 


 The eagle's high eye resolution enables it to detect

a rabbit from two miles away.  Its eye has five times 

the light detecting sensors found in the human eye.

The trade-off is that the eagle's world view is mostly

grey shaded monochromatic.  Their eyes are packed

with light and motion sensitive rods, leaving almost

no room for the eye's color-responding cones.

 

 





S U M A T R A N      T I G E R


The black and white nocturnal vision of the 

Sumatran Tiger enables it to ambush wild boar,

deer and monkey in the dim light of the rainforest

as well as the dark of night.  You cannot see it

but it definitely has its eyes on you.







W  H  A  L  E


 The left eye of the whale has an entirely different

watery view of the world from its opposite on the right.

They see most poorly in every direction, except for

in front.  They have no view of the direction they are

headed, explaining one reason why whales are known

to run into boats, buoys and fishing nets.  This applies

mostly to the plankton eating baleen whales, such as

the blue whale and gray whale.  


Predatory toothed whales use bat-like echolocation

to chase down their prey.

 






C  O  Y  O  T  E


 The eyes of a coyote are best suited for hunting in

the fullest of night and at dusk.  But their noses and

their ears play the more important role in the life of

this predator.  Their highly sensitive nose is best used

for tracking prey while their directional ears quickly

detect the slightest movement and the precise

direction from which it came.







B   A   T


 Bats are not blind.  They have eyes of varying ability.

Eye vision shows a bat its relationship with the horizon

and a heads up on large obstacles.  Echolocation

is fine-tuned, providing a detailed map of the space

around it, in which to navigate and to hunt prey.


Fruit bats fly during the day and identify fruit with the

aid of color.  Most have no capacity for echolocation.

Life forms generally don't waste scarce resources

on providing traits they don't need.

  

 


*   *   *   *   *





©  Tom Taylor






 

OVER   EASY

 

 

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