Critical Reasoning (CR) | Re: Capuchin monkeys in Venezuela often rub a certain type of millipede in

After a really fun time with dengue fever in Venezuela and Brazil... well, so I'd happily rub millipedes all over myself if I thought it would help get rid of the little turds. I wish that capuchin monkeys had taught me this trick back in the day.

Anyway, let's start with the conclusion, which is that "monkeysprobably rub millipedes into their furonly because doing so helps protect them against mosquitoes." How does the author arrive at this conclusion?

• We know that capuchin
  ...

  ---