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Tomato clownfish, in response to an unpredictable world, appear capable of adjusting when they lose their stripes based on cues from other fish and their habitat, a new study in PLOS Biology finds.

When you call an ambulance, you expect to go to the nearest hospital. But patients are often diverted to more distant emergency rooms. Cleveland wants hospitals to stop the practice.

Many U.S. military bases in the South are named after Confederate officers. Now protests over treatment of African Americans are prompting a new call to change those names.

China has been sending ships and planes to encircle Taiwan and mounting more sophisticated military drills simulating a blockade of the island.

The first half hour of Saturday's debate was dominated by foreign policy. The candidates walked a line on their views and President Obama's, whose handling of the issue has declined since ISIS's rise.

U.S. prosecutors say President Juan Orlando Hernández enabled drug trafficking into the U.S., and Democratic lawmakers want punishment. It comes as President Biden seeks Central American aid.

The cold blast has brought more than just cold! Many are dealing with low tire pressure.. and it's all about the weather.

The Trump administration has turned to tariffs and sanctions as a foreign policy tool. We take a look at the effectiveness and risks of that strategy.

A spokesman for Britain's prime minister says the White House has promised that it won't repeat a claim that Britain spied on President Donald Trump.

Blood pressure readings are a key to evaluating your risk of cardiovascular disease. But a new study finds that even small missteps in how they are taken can significantly skew the results.