Posted by Tony Irwin on 13-05-2010 18:50
#9
atylotus wrote:
but a vibrating one would be easier to spot
That depends on your eyesight - the vibrations are usually very fast and may be so fast that the predator cannot focus on the body of the cranefly. In which case it may not be able to "see" it. There has to be some protective advantage to rapid vibrating, otherwise why should so many spiders and flies do it?