Republican lawmakers want Mexico to accept U.S. military aid to cripple drug cartels making and smuggling deadly fentanyl. López Obrador mocked the idea as a threat to his country's sovereignty.

A recent court case between two rival neighbors near Montreal boiled down to whether flipping someone off is considered a crime.

Saudi Arabia and Iran are restoring full diplomatic relations in a deal brokered by China, a move that could reduce tensions in the region and that asserts China's growing influence in the Gulf.

Monkeys using stones to crack open nuts generate many stone flakes accidentally that look exactly like the ones archaeologists have long thought early humans made intentionally as tools. Oops.