News Glowworms Spit Out Urine Ingredient to Make Webs Sticky By kannavida Posted on December 15, 2016 Share Tweet Share Share Email Comments READ MORE view source Glowworms create dazzling threads to trap unsuspecting insects. And now, researchers think they may have found the secret ingredient in the worms’ traps: urea from their guts. Related Items: Share Tweet Share Share Email Click to comment Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.