How Do Spiders Use Light?
WouterSpiders are known to be attracted to light. They know that insects will flock to light sources so they will build webs near these sources.
However, they do not always use the light to its full potential. Some spiders actually prefer dark environments while others are happy to hunt in the light. This is a natural result of evolution.
For instance, the jumping spider uses light to find its prey. These spiders are especially effective at night when they can stalk their targets. The large eyes on the jumping spider also help them to see better.
Another example of how spiders can benefit from light is ultraviolet rays, which strengthen the spider’s silk. While some spiders can see ultraviolet rays, other species aren’t adapted to UV light.
In addition, some spiders can detect light-dark intensity changes to improve their navigation. There are even some spiders that use polarised light to locate their prey.
Spiders can also detect sounds that are over 3 meters away. This is a unique feature given their lack of ears.
Light can be a safety hazard, however. In fact, it is thought that ultraviolet rays are responsible for the death of some insects. Thus, it is important to avoid artificial lights and to clean regularly.
In fact, spiders may be able to detect when there is too much light. They do this by detecting patterns of insects flying close to lights. As a result, they will tend to leave the area.
