Researchers discovered that the absence of one critical gene made the plague less virulent, and may have allowed two major ...

Reducing the copies of one gene in the bubonic plague bacterium, Yersinia pestis, made it less deadly but potentially more ...

Read More: Scientists Reveal the Black ... the Yersinia Research Unit at the Institut Pasteur, according to the release. The ...

Newly hatched orchid mantises display black–red coloration ... in older nymphs. Recent research provides evidence of potential altruistic social behavior in mice. Laboratory mice appear to ...