Scientists struggle to explain why the gray whale population plummeted by nearly a quarter between 2016 and 2020.

Shutdowns resulted in fewer incidents but allowed resentment to grow, experts say.

Doctors say they are homing in on the cause of blood clots that may be linked with certain coronavirus vaccines, and said their findings have important implications for how to treat the condition, regardless of whether vaccines cause it.

Many Chicagoans are calling attention to the city's changing narrative in the fatal police shooting of 13-year-old Adam Toledo.

Rep. Adam Kinzinger (R-Ill.) blasted fellow GOP lawmakers who plan to join the "America First Caucus," saying anyone who becomes a member should lose their committee assignments.Kinzinger, a vocal critic of former President Trump, tore into the caucus...

Democrats were up in arms over the White House’s refugee policy. The administration’s attempt to clarify hasn’t repaired all the damage.