Passage Summary: A researcher argues that trash dumps are fine for animals because some baboons eating the trash seem to be physically thriving and having more babies.

Conclusion: Garbage dumps are not detrimental to the well-being of wildlife.

Reasoning: In a specific Kenyan reserve, baboons that eat from garbage dumps grow faster and produce more offspring than those that do not.

Analysis: This argument relies on a very narrow definition of 'harm'—specifically, growth rate and birth rate in a single species. To weaken this, we need to find evidence of any other negative impact, such as a shorter lifespan, the spread of disease, or a negative effect on the broader ecosystem. Since this is a 'Weaken EXCEPT' question, four choices will provide reasons why the dumps might actually be harmful. The correct answer will be the one that either supports the conclusion, is irrelevant, or at the very least, does not suggest a downside to the baboons' trash-heavy diet.