If you walk down your drive in rural Australia using a headtorch you start to see things in a different light. Tiny specks of light are reflected back to your eye. So lets look closer in the back yard with a powerful LED torch.
The little speck of light is reflected back from the eye of this nocturnal wolf spider. These are not compound eyes like insects but are better performing cup shaped eyes or ocelli some of which have a tapetum lucidum which gives the eyeshine seen with spotlighting.
The first photo shows the surroundings and the second is an enlargement with a tiny spot of light in the beam that moves from time to time, unlike dew drops which are barely seen at a distance.
The last shows the wolf spider.
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