How can I search for and find specific biology topics in scientific journals?
There are two possibilities for searching for scientific articles:

The first one is to use PubMed, a database which has been set up by the National Institute of Health in the US. It contains about 25 Million journal articles. All articles in this database are coming from peer-reviewed journals.



The other one is to use Google Scholar, which is better when you are unsure about search terms. It will give you more results, but you have to be careful here, since not all hits are from peer-reviewed journals, sometimes you get some quite questionable sources.