Okay so get this, after all that Frédéric Thomas gets everything together and flies halfway across the world to New Zealand and… he can’t find the crickets. I mean, he finds some but apparently this species of cricket is really hard to track and as a result Thomas’ team cannot capture enough to yield significant results for their study.
Thomas was forced to abandon the project and leave New Zealand, but before he did he sent a photo of a worm emerging from a cricket back to his colleagues in France. Naturally, the photo was posted in the university break room. While the photo was posted there, it was somehow seen by one of the scientists cousin who worked cleaning pools. In a bizarre twist, the cousin recognized the worm. He claimed to see them all the time in a pool that he cleaned for a local resort and also said that he had observed crickets jumping into the pool at night.
By this time Thomas was back in France but he was highly skeptical that the pool cleaner’s information was correct. He gave the guy a jar and asked him to bring some samples of the worms thinking he’d never hear from him again. Well sure enough about a week later Thomas received a jar that was chock full of worms. Specifically the species Paragordius tricuspidatus, which are parasitic horsehair worms and exactly what Thomas had desperately been trying to find inside of his crickets in New Zealand. He had travelled halfway across the world just to realize that the parasite he wished to study could be found at a hotel about an hour from his house.
Thomas’ wife was delighted when he informed her he’d booked a surprise getaway at a luxury resort, but of course she didn’t know this trip was actually a brain parasite reconnaissance mission. Thomas spent time by the pool at night and sure enough he saw crickets crawling to the water’s edge and hopping in, one by one. Thomas and his colleagues were able to use this location to find a thriving population of horsehair worms to study. Their experiments confirmed that the worms were manipulating insect brains to further their life cycle, and the results of these studies were eventually published in the journal Nature!