When Can the Covid Masks Finally Come Off?

Amid the turmoil of the last two years — a period that included a deadly pandemic, mass layoffs, an ugly presidential election and an attack on the United States Capitol — some of the fiercest politi...

Why Don’t We Have a Covid Vaccine for Pets?

Over the past year, coronavirus vaccines have gone into billions of human arms — and into the fuzzy haunches of an ark’s worth of zoo animals. Jaguars are getting the jab. Bonobos are being dosed. So...