I'm looking for 2 articles in Biology and I can't determine if they're peer review or not. Can anyone help with what I'm supposed to look for?

I wonder if you mean have been peer reviewed?

All of the articles cited here are peer reviewed by at least two peers. (to download the entire articles, you have to pay).

http://www.nature.com/nature/index.html

Not all journals use the peer review process. Sometimes the article will say that is was peer reviewed. My experience, however, is that most do not. You might go to the web site of the journal itself, look for "how to submit an article" and see if there is information there about peer review. Most major journals do use peer review.

Of course! Determining if an article is peer-reviewed can sometimes be a bit challenging, but there are several things you can look for to help you determine if an article has undergone the peer review process. Here are some steps you can take:

1. Examine the Journal: Start by looking at the journal where the article is published. Peer-reviewed articles are usually found in scholarly, academic, or scientific journals. These journals typically have a rigorous editorial process that includes peer review.

2. Check the Article Type: Many journals categorize their articles into different types, such as "Research Article", "Review Article", or "Letter to the Editor". Research articles are more likely to have undergone peer review, while articles like editorials or opinion pieces might not be peer-reviewed.

3. Look for the "Methods" Section: Peer-reviewed articles commonly include a section describing the research methods used in the study. This section often includes details about the experimental design, data collection, analysis, and any statistical methods employed.

4. Assess the References: Peer-reviewed articles usually include a comprehensive list of references at the end. These references should be cited in a scholarly manner, supporting the claims and findings presented in the article.

5. Check for a Reviewer Acknowledgement: Some journals explicitly mention that the article has been subjected to peer review. This information can often be found on the first or last page of the article, where the reviewers' names or acknowledgements are listed.

6. Visit the Journal's Website: If you still have doubts, try visiting the journal's website and look for information on the peer review process. Many reputable journals provide detailed guidelines about their review procedures, which can help in evaluating the articles they publish.

Remember that even peer-reviewed articles can have flaws, so it's always important to critically evaluate the content and consider multiple sources when doing research.

Applying these steps, you should be able to determine if the articles you're looking for have undergone the peer review process.