The rise in anti-vaccination has led to a resurgence of many ancient diseases in recent years. The US suffered a measles outbreak, and the spread of hepatitis in young children around the world was so ...

Russian opposition leader Alexei Navalny died in prison after being poisoned with a deadly toxin found in Ecuadorian dart frogs, the U.K. and other allies claimed Saturday ...

Russian opposition figure and outspoken Kremlin critic Alexey Navalny, who died two years ago, was killed while in prison by a lethal toxin found in poison dart frogs in South America, five European ...

The chatbot told Small she was living in what it called "spiral time," where past, present and future happen simultaneously.