Hi there, Thanks Ruud for your new show, it is informative and entertaining, we are all enjoying it! I missed out on this question last week, so I wanted to get it on line early this week. About Cicadas, it was interesting to hear about them two weeks ago, after all these years I had never known how they actually made their very loud song, now I know. Two questions, are they found all over the world and does their sound have any purpose in "cooling" themselves? I have heard that for years and was curious. They tend to be silent more at night and after an afternoon storm...when it cools outside. Summer wouldn't be the same without them! Thanks again and have a good week! Kim