Reptiles on a Mexican island were considered an invasive species, but DNA evidence proves they beat humans to the island by ...

_Tyrannosaurus rex_ was a relentless predator who lived during the Cretaceous Period more than 65 million years ago. Roger Harris/Science Photo Library via Getty Images DNA – which stands for ...

In 1812, hundreds of thousands of men in Napoleon's army perished during their retreat from Russia. Researchers now believe a couple of unexpected pathogens may have helped hasten the soldiers' demise ...

Millions struggle with depression and anxiety, often enduring long waits for effective treatment. Scientists in Sweden, ...