Biologists mapping the human body have long assumed that every major kind of microscopic life inside us already had a place ...

A newly identified class of RNA molecules has been discovered in bacteria living inside the human body. These circular ...

When Berna Sozen, PhD, assistant professor of Developmental Stem Cell Biology at Yale, was in her first weeks of pregnancy, she couldn’t help but wonder about what exactly was going on in the “black ...

Coast redwoods—enormous, spectacular trees, some reaching nearly 400 feet, the tallest plants on the planet—thrive mostly in a narrow strip of land in the Pacific Northwest of the United States. Most ...

Research into 430,000-year-old fossils collected in northern Spain found that the evolution of the human body's size and shape has gone through four main stages, according to a paper published this ...