Young primates in a southern African nature park were observed to constantly interfere when their mother was giving attention to a younger brother or sister.

On Jimmy Lai and the future of freedom.

The commerce secretary, Howard Lutnick, acknowledged at a Senate hearing that he and his family visited Jeffrey Epstein on his private island.

About 137,000 .50-caliber rounds have been seized since 2012, and of those, 47 percent came from a plant in Kansas City, Mo., Mexico’s defense secretary said.

A newly unsealed affidavit showed that a criminal investigation into the 2020 election in Fulton County, Ga., relied heavily on claims about ballots that have been widely debunked.

A Detroit billionaire met with Howard Lutnick, the commerce secretary, hours before President Trump said he would block the opening of a new bridge connecting Detroit to Canada, officials said.

What started as a rebuke of Dr. Attia has become a discussion about his credentials, longevity medicine and whom patients should trust.

Also, Republicans have a huge cash advantage. Here’s the latest at the end of Tuesday.

A priest from Sacramento. A bar owner from New York. A taquero from Los Angeles. Puerto Rico came alive at the Super Bowl because of hundreds of non-famous performers.

Henry McGowan headed for Europe, showing signs of mental distress. His father, John McGowan, raced after him. This week, the son will stand trial in Ireland, accused of his father’s murder.

After Republican criticism, a group that offers professional resources to judges withdrew a climate science chapter from its Reference Manual on Scientific Evidence.

Palestinian and Jewish citizens of Israel joined forces to demand government action in the face of a spiraling death toll from criminal violence among Arabs.

Michael Reiter, a former Palm Beach police chief, described a 2006 conversation with Donald Trump to the F.B.I. years later, according to a newly released document.

The agency is racing to repeal a scientific finding that requires it to fight global warming. Experts say the goal is to get the matter before the justices while President Trump is still in office.

New documents detail Jeffrey Epstein’s efforts to foster strategic, sometimes reciprocal relationships with Russian officials.

Israel is unlikely to withdraw its troops from the enclave before Hamas and other militant groups lay down their arms.

Two research teams have identified possible landing sites for Luna 9, the first human-made object to safely reach the lunar surface. “One of them is wrong,” an expert said.