26 May 2008

Sight and bees


The sense of sight may well seem obvious - you look and you see. However, there are realities that we do not see as we look. It appears that cats have no cones in their eye structure. This helps them see at night because they see only in terms of black and white. (A possible reason zebras have b/w stripes which of course mesh into a blur when they bob as they run at full speed from the pursuing big cats.)

Bees perceive ultraviolet light which helps them pinpoint flowers.

We see in rainbow colours, which is beautiful, but it is not all there is to see. Our maps of reality are limited by what we can and cannot see.
'How limited?', one wonders.

Tom

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