A nice, concise overview on the differences between primary sources and review articles in the sciences -- offers good tips on how to identify a primary research article.
Research on animal behavior, aquatic life and fisheries, biochemistry, ecology, plant science, toxicology, virology, microbiology, health and safety science, entomology, and more. (NC LIVE)
Applied and general science articles covering topics such as global warming, alternative energy sources, robotic engineering, genetically modified food, and more. (NC LIVE)