Merrit Kennedy

After another major coral bleaching event, a new study has concluded that securing a future for coral reefs "ultimately requires urgent and rapid action to reduce global warming."

The South American polka dot tree frog initially appears unremarkable. But when researchers in Argentina shone an ultraviolet light on the frog, it glowed.

The two defendants are officers of the Russian Federal Security Service, or FSB. They were indicted along with two criminal hackers over a 2014 breach involving at least 500 million Yahoo accounts.

The judges issued temporary restraining orders that prevented the president's revised executive order from taking effect at midnight and barring refugees and visitors from six mostly Muslim countries.

"Why should we believe that it's going to be different this time than it's been in the past?" Sen. Jeanne Shaheen asked Marine Corps Commandant Gen. Robert Neller.

The white dwarf is whizzing around what researchers think is a black hole at an extraordinary speed — at least twice an hour. It is believed to be a star's closest known orbit to a black hole.

Conservationists are sounding the alarm over a South African proposal that would legalize and regulate the domestic trade of rhinoceros horn, as well as allow some limited exports.

Together with her sisters, she formed the group Sister Sledge, which was still touring. The band's publicist said they have not yet determined a cause of death and that she had not been ill.

Gen. Joseph Votel was blunt: "We lost a lot in this operation. We lost a valued operator, we had people wounded, we caused civilian casualties, lost an expensive aircraft."

The Pentagon says the new troops will fire artillery rounds at ISIS fighters in support of the local forces who are trying to take back the ISIS capital, Raqqa.

You might recognize it from Game of Thrones or innumerable Instagram posts from visitors to the island. It fell during a powerful storm.

Lynne Stewart, a leftist lawyer who defended radicals and was eventually convicted in a terrorism case herself, has died. She served more than four years in prison.

Brazil's recession was already of historic proportions. Today, government figures from 2016 confirm that it has grown even worse. Nearly 13 million Brazilians are unemployed.

It's part of an effort to combat a global movement that calls for cutting off economic ties in support of Palestinian independence. Israel has not explained how it will enforce the law.

This is believed to be the first such incident at a European zoo. The zoo says its staff is in shock. The suspects remain at large, and police are investigating.

Facebook has been criticized for providing a platform to fake news stories, especially during the presidential campaign. It is working with independent fact-checkers to examine flagged stories.

Tossing a coin into a pool is believed to be good luck. But it proved to be terrible luck for an endangered sea turtle who consumed nearly 1,000 coins thrown into her pool.

After Germany canceled a Turkish political rally in the country, Turkish President Recep Tayyip Erdogan likened the German government to the Nazis.

Preval has a mixed legacy. He was recognized as a hard worker, but widely criticized in his second term for what was seen as a weak and absent response to Haiti's devastating 2010 earthquake.

The threats were allegedly part of the suspect's cyberstalking campaign against a woman with whom he once had a romantic relationship. Juan Thompson once worked as a reporter at The Intercept.