[geeks] OT: cat

David Cantrell david at cantrell.org.uk
Fri Jan 18 18:30:09 CST 2002


On Fri, Jan 18, 2002 at 11:00:56AM -0600, Eric Dittman wrote:
> Have you ever looked at a cat with night vision equipment?
> Their eyes glow like there's light bulbs in them.

IIRC they have an extra layer of reflective gubbins at the back of the eye,
so as to give any photons which got through the light-receptive cells
another chance to be detected.  A pretty sensible adaptation for a nocturnal
predator.

-- 
David Cantrell | david at cantrell.org.uk | http://www.cantrell.org.uk/david

  o/~ I want my SMTP o/~



More information about the geeks mailing list