Originally found on Boing Boing, this is an interesting evolutionary trait to use UV light to woo the prey into the webs.
The crosses, zigzags, and spirals woven by some spiders have long puzzled web watchers. But those seemingly superfluous decorations may be traps that use light to lure prey, a new study of Australian spiders finds
Fascinating how things/traits/behaviors we can’t see with our naked eye are still being discovered. I know it often times feels (to me) like all the “big” discoveries have been made, all the important technological advances done, but our knowledge is still so incomplete.