The evolution of beer yeasts, seedy pants and vampire bat venom-turned medicine

Beer yeasts: Researchers at Lund University in Sweden tracked the history of two yeasts—Saccharomyces cerevisiae and Dekkera bruxellensis—used in alcohol fermentation to pinpoint their role in ethanol production. They found that, around 150 million years ago, competition with other microbes, and the overall increase in sugar-rich fruits, encouraged the yeasts to withstand high ethanol concentrations—an adaptation that would allow them...

Read More

Taking a shot at photographing science and nature

Go to Google Images and search for “science.” What are the results? More than likely, the search will come up with beakers, protons, lab coats, double helixes, pulsars, microscopes and perhaps a smattering of trees and images of the globe. Photographs of researchers boot-high in streams collecting samples, for instance, or of a Cayman Island blue iguana in its natural habitat, would probably be few and far between. But images such as these—which show an aspect of the biological sciences, environmental processes or a subject of ecological research—rarely show up, even though they are of course also science.

Read More