For decades, scientists have tried to answer a simple question: why be honest when deception is possible? Whether it is a peacock's tail, a stag's roar, or a human's résumé, signals are means to ...

US President Donald Trump has announced another costly renovation project in Washington, D.C. Following plans for a White ...

Researchers found that Chlamydia pneumoniae can persist in the retina and brain, driving inflammation, nerve cell loss, ...

Chlamydia pneumoniae—a common bacterium that causes pneumonia and sinus infections—can linger in the eye and brain for years and may aggravate ...