Question

Roberto is conducting research about the ethics of confining animals in zoos. Which source on his list is the most credible?

a site where people share stories about their experiences in zoos and their feelings about zoos
a research study published on a university’s website about how being in a zoo affects animals
an advertisement for a family vacation package that includes an amusement park and zoo
a blog where a zoo owner discusses everyday life working at a zoo and caring for animals

Answer 1

Answer: the research study published on a university’s website.

Why: a university research study is most likely to be evidence‑based, include described methods and data, cite sources, and be written by qualified researchers — all of which support reliable, objective conclusions.

Quick caveats and tips:
- Verify it’s peer‑reviewed or check the author credentials, date, methods, sample size, and funding/conflicts of interest.
- Use it alongside other credible sources (peer‑reviewed journals, books, reports from reputable animal‑welfare organizations).
- Personal stories, ads, and a single owner’s blog can offer useful perspectives but are more likely to be anecdotal or biased and shouldn’t be your sole evidence.