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![Japanese Unit 731 staff carrying a body from one of the unit's facilities.](https://cdn.mos.cms.futurecdn.net/vrxVC62XJfLGCvPrrGgvMj-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/vrxVC62XJfLGCvPrrGgvMj-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/vrxVC62XJfLGCvPrrGgvMj-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/vrxVC62XJfLGCvPrrGgvMj-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/vrxVC62XJfLGCvPrrGgvMj-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/vrxVC62XJfLGCvPrrGgvMj-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/vrxVC62XJfLGCvPrrGgvMj-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/vrxVC62XJfLGCvPrrGgvMj-1200-80.jpg 1200w)
World War II 'horror bunker' run by infamous Unit 731 discovered in China
By Ben Turner published
A bunker discovered near the city of Anda in northeast China is believed to be the largest test site of Imperial Japan's infamous Unit 731, which conducted horrifying human experiments during the 1940s.
![A 1920s illustration of an ancient Greek Bireme that has two decks of oars.](https://cdn.mos.cms.futurecdn.net/kF6sesieAeQuHsYMQkXYkQ-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/kF6sesieAeQuHsYMQkXYkQ-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/kF6sesieAeQuHsYMQkXYkQ-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/kF6sesieAeQuHsYMQkXYkQ-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/kF6sesieAeQuHsYMQkXYkQ-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/kF6sesieAeQuHsYMQkXYkQ-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/kF6sesieAeQuHsYMQkXYkQ-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/kF6sesieAeQuHsYMQkXYkQ-1200-80.jpg 1200w)
What is the 'ship of Theseus' thought experiment?
By Meg Duff published
The Greek writer Plutarch proposed this question: If a ship's planks are replaced over time due to wear and tear until none of the original pieces remain, is it still the same ship?
![Screenshot from Night of the Living Dead (1968)](https://cdn.mos.cms.futurecdn.net/SHYjf2ScUvSnF4TcmDvxxi-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/SHYjf2ScUvSnF4TcmDvxxi-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/SHYjf2ScUvSnF4TcmDvxxi-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/SHYjf2ScUvSnF4TcmDvxxi-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/SHYjf2ScUvSnF4TcmDvxxi-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/SHYjf2ScUvSnF4TcmDvxxi-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/SHYjf2ScUvSnF4TcmDvxxi-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/SHYjf2ScUvSnF4TcmDvxxi-1200-80.jpg 1200w)
Best zombie movies: viruses, fungi, space radiation & voodoo magic
By Fran Ruiz published
Movie Science We're shambling onto your screens to look at the best zombie movies, and the scientific (and not so scientific) inspirations behind them.
![A drawing of Benjamin Waterhouse Hawkins' studio near Central Park with various animal models and specimens.](https://cdn.mos.cms.futurecdn.net/WgxLubo3b6avXsoopexCh-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/WgxLubo3b6avXsoopexCh-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/WgxLubo3b6avXsoopexCh-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/WgxLubo3b6avXsoopexCh-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/WgxLubo3b6avXsoopexCh-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/WgxLubo3b6avXsoopexCh-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/WgxLubo3b6avXsoopexCh-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/WgxLubo3b6avXsoopexCh-1200-80.jpg 1200w)
New York's first dinosaur museum was trashed before it even opened. The culprit is not who we thought.
By Sascha Pare published
The crime, which had been attributed to a rogue politician called "Boss" Tweed, was likely orchestrated by an "eccentric and destructive" man with an obsession for white paint.
![An illustration of Noah's ark during the biblical flood. We see a wood boat crashing over a giant wave against a stormy sky.](https://cdn.mos.cms.futurecdn.net/NqeaQsAQMPCr2viN3M6uGk-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/NqeaQsAQMPCr2viN3M6uGk-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/NqeaQsAQMPCr2viN3M6uGk-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/NqeaQsAQMPCr2viN3M6uGk-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/NqeaQsAQMPCr2viN3M6uGk-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/NqeaQsAQMPCr2viN3M6uGk-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/NqeaQsAQMPCr2viN3M6uGk-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/NqeaQsAQMPCr2viN3M6uGk-1200-80.jpg 1200w)
Did Noah's flood really happen?
By Patrick Pester published
Noah's flood is a story much older than the Bible, and researchers are still learning about its roots.
![Close-up of young man singing karaoke while enjoying with friends in party.](https://cdn.mos.cms.futurecdn.net/tQwEzNr5h6pbjLAbvCUtXG-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/tQwEzNr5h6pbjLAbvCUtXG-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/tQwEzNr5h6pbjLAbvCUtXG-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/tQwEzNr5h6pbjLAbvCUtXG-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/tQwEzNr5h6pbjLAbvCUtXG-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/tQwEzNr5h6pbjLAbvCUtXG-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/tQwEzNr5h6pbjLAbvCUtXG-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/tQwEzNr5h6pbjLAbvCUtXG-1200-80.jpg 1200w)
Are some people actually tone deaf?
By Joe Phelan published
Tone deafness, a neurological disorder known as amusia, can make it hard to distinguish between musical pitches.
![The Birds and the Bees is a story parents tell their children to deflect the question "Where do babies come from?"](https://cdn.mos.cms.futurecdn.net/jPf6Rt4F7XZDed7Anz7mxg-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/jPf6Rt4F7XZDed7Anz7mxg-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/jPf6Rt4F7XZDed7Anz7mxg-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/jPf6Rt4F7XZDed7Anz7mxg-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/jPf6Rt4F7XZDed7Anz7mxg-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/jPf6Rt4F7XZDed7Anz7mxg-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/jPf6Rt4F7XZDed7Anz7mxg-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/jPf6Rt4F7XZDed7Anz7mxg-1200-80.jpg 1200w)
"The birds and the bees": Meaning and origin of the phrase
By Kim Ann Zimmermann last updated
Reference "The birds and the bees" is a story parents tell their children to deflect the question "Where do babies come from?" The phrase refers to the talk about sex.
![A white marble statue of Hippocrates standing at the top of a set of marble stairs near some trees and bushes](https://cdn.mos.cms.futurecdn.net/nWyuiXyaud4kFWH8VxATHV-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/nWyuiXyaud4kFWH8VxATHV-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/nWyuiXyaud4kFWH8VxATHV-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/nWyuiXyaud4kFWH8VxATHV-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/nWyuiXyaud4kFWH8VxATHV-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/nWyuiXyaud4kFWH8VxATHV-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/nWyuiXyaud4kFWH8VxATHV-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/nWyuiXyaud4kFWH8VxATHV-1200-80.jpg 1200w)
What is the 'Hippocratic oath,' and who was Hippocrates?
By Traci Pedersen last updated
Hippocrates was a physician who lived in ancient Greece and is credited with writing a code of ethics called the Hippocratic oath.
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