Small pollen grains are visible in this scanning electron micrograph of the ragweed plant.
By The Scientist Staff | June 14, 2013
CDC, Janice Haney Carr
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By Kerry Grens
Alexander Rich, discoverer of Z-DNA, RNA-DNA double helix, and the structure of collagen, has passed away at age 90.
By Jenny Rood
Fossils of a new species discovered in China suggest birds developed 6 million years earlier than previously thought.
By Jyoti Madhusoodanan
Deep-sea microbes possess hallmarks of eukaryotic cells, hinting at a common ancestor for archaea and eukaryotes.
View the May 2015 contents.
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