The horses are slick with sweat, veins bulging, feet dancing through a maelstrom of legs and mallets and flying clods of earth, 6,000 pounds of flesh tumbling after a tiny white ball. The riders are ...

Polymerase chain reaction (PCR) test kits for COVID-19 use what’s known as gene cloning – not reproductive cloning – to detect the presence or absence of the SARS-CoV-2 virus, but social media posts ...