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I read a study that tested the efficacy of ants vs. other insects in lab setting and the assassin bugs that had either nothing glued on or other bugs besides ants were something like 90% more likely to be preyed on by the spiders than the assassin bugs with ants glued on their back. This kind of stuff is fascinating to me :)

Last night I watched a BBC video which showed that ants really don't attack such an assassin bug. Interesting.