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When you drop a piece of food on the floor, is it really OK to eat if you pick up within five seconds? This urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won't have much of a chance to contaminate it. Research in my lab has focused on how food and food contact surfaces become contaminated, and we've done some work on this particular piece of wisdom.

Reeva Steenkamp's father delivered a gut-wrenching plea for Oscar Pistorius to be punished for murdering his daughter. He says he still speaks to his daughter every day.

Rabbits: cute, fluffy creatures; big ears, big teeth. Harmless? Wrong.

CNN's Anderson Cooper reads out the names and ages of the victims of the massacre that took place at Pulse, a gay nightclub in Orlando.

Sneaky panther seems ready to pounce on "victim" and then ... CNN's Jeanne Moos has the backstory.

The NTSB is investigating the cause of a single-engine plane crash that killed three people in Houston.

As Francesca Cesari photographed a friend with her newborn several years ago, they paused so the crying infant could breast-feed in a quiet, darkened room.

The ancient city of Petra may be one of the world's best-known archaeological sites, but it still has secrets to reveal.

Since going pro at age 14, Maria Sharapova has risen to become a tennis star and 2015's highest-paid female athlete.

When you hear the word "fasting," you probably think of gimmicky diets—and, um, feeling "hangry." But a growing body of research suggests that cycling super low-calorie days into your normal eating plan could potentially improve your health (more on that later). But before you skip lunch and let your gut start growling, read on for everything you need to know about intermittent fasting.

Millions of Chinese high schoolers will sit the country's grueling two-day college entrance examination, known as the gaokao, this week.

When the children of Bridge Farm Primary School in Bristol were tasked with naming a school "house" after a local hero, they decided on the famous and elusive street artist Banksy. Little did they expect to return from school holidays Monday to find an original Banksy of their own on an exterior wall of their school, in this city in southwestern England. The mural shows a stick-wielding girl chasing a flaming tire.

Presumptive Republican presidential nominee Donald Trump says Hillary Clinton should go to jail over her emails. CNN's Jason Carroll reports.

Pope Francis announced Saturday that bishops who fail to report cases of sex abuse of children and vulnerable adults could be removed from office.

See photos from the life of U.S. President John F. Kennedy, who became the youngest man to assume the office when he was elected in 1960.

An 18-year-old Pakistani schoolteacher died Wednesday from injuries after her body was set on fire for refusing a marriage proposal, police said.

In the early 1980s, the AIDS crisis was being covered nightly on the news -- but that was likely the only time you'd hear about it on your television.

Go inside CNN's coverage of the fall of the Berlin Wall in 1989:

More than 2,500 migrants have drowned in the Mediterranean while attempting to cross into Europe so far this year. Legal adviser and external relations coordinator for Sea-Watch describes some of her missions to rescue migrants.