Merrit Kennedy

Britain's Prime Minister David Cameron is calling for a historic nationwide referendum on June 23 to decide whether the U.K. will remain in the European Union.

This comes a day after Cameron and EU leaders announced in Brussels that they have negotiated a new deal that changes the terms of Britain's membership.

After negotiating these new concessions, Cameron strongly advocated that the U.K. stick with Europe. He spoke in front of 10 Downing Street after presenting the EU reform deal to his Cabinet.

Internationally acclaimed Italian author and philosopher Umberto Eco has died at age 84. His death was confirmed by his American publisher Houghton Mifflin Harcourt.

Born in a small Italian town in 1932, Eco is perhaps best known for his 1980 mystery novel The Name of the Rose, which is set in a monastery in the 14th century. It was an unexpected international bestseller, launching his career as an author.

A Texas judge has ordered that the case of 18-year-old Ethan Couch, who notoriously presented an "affluenza" defense in his drunken driving trial in 2013, be moved to an adult court.

Couch, who killed four people and seriously wounded two others while driving drunk when he was 16, will receive new probation terms. He could face up to 180 days in jail.

Here are more details from The Dallas Morning News:

Limacina helicina looks like most any other sea snail — until it beats what look like delicate wings and "flies" through the water.

A newly published study in the Journal of Experimental Biology says the tiny species of sea snail moves through water using the same kind of motion that an insect uses to fly.

Take a look at the "sea butterfly" in action:

Just shy of a week ago, the U.S. and Russia announced they would work toward a "nationwide cessation of hostilities" in Syria within a week.

But as consultations continue, it appears less likely that the world powers supporting the plan will make the self-declared deadline.

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