Academic Search Ultimate offers an extensive collection of peer-reviewed journals, magazines, reports, books, and videos covering various subjects like astronomy, engineering, health, law, mathematics, and more. It's a comprehensive resource for scholars in many fields.
Articles from scholarly journals, popular magazines and newspapers, in many different subject areas.
JSTOR is a digital library of academic journals, books, images, and primary sources.
These databases are specific to biology or at least to the sciences in general. Here you will find popular articles as well as scholarly, peer-reviewed publications on a wide range of topics in biology and other scientific disciplines.