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In July of 2008, Dylan Breves, then a seventeen-year-old student from New York City, made a mundane edit to a Wikipedia entry on the coati. The coati, a member of the raccoon family, is “also known as … a Brazilian aardvark,” Breves wrote. He did not cite a source for this nickname, and with good reason: he had invented it. He and his brother had spotted several coatis while on a trip to the Iguaçu Falls, in Brazil, where they had mistaken them for actual aardvarks.

An elderly Chinese woman is only able to speak English after suffering a stroke, it's been reported. Liu Jaiyu, a 94-year-old former English teacher, has found herself no longer able to speak Chinese after parts of her brain relating to native language were damaged by a cerebral infarction, the local Hunan TV reports. Television pictures show her in bed, answering simple questions in English, which means the nursing staff are having to brush up on their language skills. "She greets me in the morning using English, after she's eaten her meals in the afternoon she uses English," one nurse tells the TV. "My memory of the language isn't too good, sometimes I don't understand what she's saying!" A doctor at the hospital says that Ms Liu is suffering from paralysis of all her limbs, as well as an "obstacle" to her language functions. "It seems the part of her brain responsible for her mother tongue has been damaged, however the part that uses English has been preserved," Li Yanfang says. There have been rare cases where patients develop a different accent after a stroke, migraine or head trauma. But Ms Liu's case appears different because she has apparently turned to an already-learned language. Experts say that the complex Chinese language requires the use of both parts of the brain, while English only uses one side.

Gerd Gigerenzer's test In 2006 and 2007 Gigerenzer gave a series of statistics workshops to gynaecologists, and kicked off every session with the same question: A 50-year-old woman, no symptoms, participates in routine mammography screening. She tests positive, is alarmed, and wants to know from you whether she has breast cancer for certain or what the chances are. Apart from the screening results, you know nothing else about this woman. How many women who test positive actually have breast cancer? What is the best answer? nine in 10 eight in 10 one in 10 one in 100 Gigerenzer then supplied the doctors with data about Western women of this age. (His figures were based on US studies from the 1990s, rounded up or down for simplicity - recent stats from Britain's National Health Service are slightly different.) The probability that a woman has breast cancer is 1% ("prevalence") If a woman has breast cancer, the probability that she tests positive is 90% ("sensitivity") If a woman does not have breast cancer, the probability that she nevertheless tests positive is 9% ("false alarm rate") In one session, almost half the gynaecologists said the woman's chance of having cancer was nine in 10. Only 21% said that the figure was one in 10 - which is the correct answer.

Ministers in the U.K. are considering banning homeopathy from the treatments that can be prescribed by doctors working for the National Health Service (NHS). At the moment, the NHS spends £4 million ($6 million) on homeopathic prescriptions and hospitals every year

"Given the finite resources of the NHS, any spending on homeopathy is utterly unjustifiable. The money spent on these disproven remedies can be far better spent on treatments that offer real benefits to patients," Simon Singh, founder of the Good Thinking Society, said in a statement.

The positive effects from homeopathy come exclusively from the placebo effect, a physiological response to a harmless substance that leads to a reduction in symptoms from an ailment

So-called killer robots are due to be discussed at the UN Human Rights Council, meeting in Geneva. A report presented to the meeting will call for a moratorium on their use while the ethical questions they raise are debated. The robots are machines programmed in advance to take out people or targets, which - unlike drones - operate autonomously on the battlefield. They are being developed by the US, UK and Israel, but have not yet been used. Supporters say the "lethal autonomous robots", as they are technically known, could save lives, by reducing the number of soldiers on the battlefield. But human rights groups argue they raise serious moral questions about how we wage war, reports the BBC's Imogen Foulkes in Geneva. They include: Who takes the final decision to kill? Can a robot really distinguish between a military target and civilians?

The period — the full-stop signal we all learn as children, whose use stretches back at least to the Middle Ages — is gradually being felled in the barrage of instant messaging that has become synonymous with the digital age

Practical Ethics Bites is a series of audio podcasts on practical ethics targeted specifically at pupils studying philosophy or religious studies at A level in UK schools. It is produced by the team behind the popular podcast Philosophy Bites, David Edmonds and Nigel Warburton.  Philosophy Bites has had over 21 million downloads.  David Edmonds is a Senior Research Associate at Oxford’s Uehiro Centre for Practical Ethics and all the interviewees are academics linked to the Uehiro Centre. The series aims to be an educational resource for teachers as well as students.  Each interview is around 20 minutes long. The interviews will be posted below and will also be available on iTunesU. They will be released on a weekly basis over September and October 2014.  They are completely free to listen to.

After the Charlie Hebdo attack, a Paris imam went to the scene and condemned the murders. "These victims are martyrs, and I shall pray for them with all my heart," said Hassen Chalghoumi (above). He was also quoted as saying that 95% of victims of terrorism are Muslim. How accurate is this statistic?

Fact can be stranger than fiction. This is especially true of black holes, as Prof Stephen Hawking explains.For instance as soon as you entered the black hole, reality would split in two. "In one, you would be instantly incinerated, and in the other you would plunge on into the black hole utterly unharmed," as we have previously explored.In the 2016 Reith lectures broadcast on BBC Radio 4, Prof Hawking further examines and challenges the latest scientific thinking about black holes.

GAZA — Very little of Abu Shadi Shenbari’s family home remains in Beit Hanoun, in the northern Gaza Strip. Only a concrete bathroom wall was left standing when Israeli forces flattened the neighborhood near the border with Israel during the war with Hamas last summer.Though Mr. Shenbari had all but abandoned that last panel of erect concrete, in recent days he began building a wood and wire-mesh fort with a flimsy nylon roof to protect the bombed-out bathroom wall, which is now home to a 10-foot-tall depiction of a kitten.The spray-painted mural was created by the elusive British graffiti artist Banksy, who slipped in and out of Gaza in February, leaving his mark on three slabs of rubble left from Israel’s 50-day fight with Hamas, the Islamic group that controls Gaza.

People have long seen faces in the Moon, in oddly-shaped vegetables and even burnt toast, but a Berlin-based group is scouring the planet via satellite imagery for human-like features. What's behind our desire to see faces in our surroundings, asks Lauren Everitt. Most people have never heard of pareidolia. But nearly everyone has experienced it. Anyone who has looked at the Moon and spotted two eyes, a nose and a mouth has felt the pull of pareidolia. It's "the imagined perception of a pattern or meaning where it does not actually exist", according to the World English Dictionary. It's picking a face out of a knotted tree trunk or finding zoo animals in the clouds.