How the European conquest affected Native Americans

Researchers from Germany and the United States suggest that the European conquest triggered the loss of more than half the Native American population. The results of their study provide new insight into the demise of the ...

Using solar farms to generate fresh desert soil crust

In the arid regions of the American Southwest, an unseen world lies beneath our feet. Biocrusts, or biological soil crusts, are communities of living organisms. These industrious microbes include cyanobacteria, green algae, ...

Scientists create stable, self-renewing neural stem cells

In a paper published in the April 25 early online edition of the Proceedings of the National Academy of Sciences, researchers at the University of California, San Diego School of Medicine, the Gladstone Institutes in San ...

Blazes of light reveal how plants signal danger long distances

In one video, you can see a hungry caterpillar, first working around a leaf's edges, approaching the base of the leaf and, with one last bite, severing it from the rest of the plant. Within seconds, a blaze of fluorescent ...

The scientist rewriting DNA, and the future of medicine

A revolution is underway in gene editing—and at its forefront is David Liu, an American molecular biologist whose pioneering work is rewriting the building blocks of life with unprecedented precision.

page 6 from 40