Biologist discovers a new species, up his nose

By | December 10, 2013

Now I had an undamaged example I could study.

As I sealed the tick into a tube and put it in the freezer, I reflected on how it had come to stow itself away undetected. It must have been waiting in ambush on the forest floor as I passed, then made its way right up my body. Discovering it in my nose had been alarming enough, but thinking about it crawling across my face to get there was truly disturbing.

Once I got the genetics report back from the lab, though, my unease turned to excitement. The DNA sequence of the tick could not be matched with any existing database. At the very least, my specimen was a member of a species that had never been genetically tested before, but it could well be of a type previously unknown to science.

A colleague who’d been studying high-resolution photographs of the chimps I’d been researching found that many of them had ticks of the same type up their noses. No evidence of this phenomenon had been found before, and I now believe these particular ticks have evolved specifically to hide inside the nostril cavities of chimps, where they can feast in safety, away from their host’s habitual grooming regimes.

It could well be that the Ugandan nostril ticks have yet to spread beyond the particular park where we conducted our research. We now have to return and set traps to catch more, so we can do further study. It’s a tremendously exciting project for me, and could prove vitally important: we know my tick managed to latch on to me undetected, and we need to ensure others don’t stow away on international flights and establish colonies in other countries, where they could potentially spread exotic diseases.

A biologist can spend a whole career hoping to make such a breakthrough, and there’s a special kudos attached to being able to carry out a study on a subject of which you have personal experience. The discomfort and revulsion I went through is a very reasonable trade-off. I feel genuinely grateful to the tick for choosing me as its host.

via Experience: I discovered a new species up my nose | Life and style | The Guardian.

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