Superb starlings help care for the offspring of birds they are not related to. “To me, that sounds like friendship,” one scientist said.

The United States is said to be in talks with the African country about taking in expelled migrants. There may be lessons in London’s experience.

Morocco is linked to Europe on the strength of its auto sector and a trade pact. But its status as a connector country has become precarious in the trade war.

Human rights groups have called conditions in the country’s network of migrant detention centers “horrific” and “deplorable.”