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Doctors around the world are offering false hope and bogus treatments to millions of people with an incurable condition that can lead to blindness. BBC reporter Ramadan Younes, who has the disease himself, went undercover to expose them.

Police in Ohio fatally shot a zebra after it bit its owner on the arm and continued to act aggressively toward officers, authorities said. Officers arrived to the man's home in Circleville, Ohio, on Sunday after he called and reported that "his arm had been bitten off by a zebra".

The Ireland women's rugby team has chosen to swap their traditional white shorts and make a permanent switch to navy because of period concerns. The move comes as a response to feedback from players about playing in white rugby kit during their period.

Beethoven had a likely genetic predisposition to liver disease and a hepatitis B infection months before his death, tests have revealed. They were, however, unable to establish a definitive cause of his hearing loss.

In every direction, fire-red sand fanned out across the land. Everything that wasn't red seemed covered in it: the boab trees, the spinifex, the termite mounds stretching like tiny Towers of Babel towards the sky. The road itself shimmered like a sea of rubies.

Is Wikipedia an open encyclopedia or a covert disinformation operation? Wikipedia is generally thought of as an open, transparent, and mostly reliable online encyclopedia. Yet upon closer inspection, this turns out not to be the case.

Humanity is on thin ice.

Google has started rolling out its AI chatbot Bard, but it is only available to certain users and they have to be over the age of 18. Unlike its viral rival ChatGPT, it can access up-to-date information from the internet and has a "Google it" button which accesses search.

Microsoft co-founder Bill Gates says the development of artificial intelligence (AI) is the most important technological advance in decades. In a blog post on Tuesday, he called it as fundamental as the creation of the microprocessor, the personal computer, the Internet, and the mobile phone.

Police in India's Punjab have launched a massive search for Amritpal Singh, a controversial self-styled preacher who has been on the run since Saturday. Internet and messaging services in the state have remained suspended since the search began and security has been tightened.

Sri Lanka has secured a $3bn (£2.4bn) bailout from the International Monetary Fund (IMF) as it faces its worst economic crisis since independence. The deal has been nearly a year in the making and a lifeline for the country that has billions of dollars in loans.

So farewell to Credit Suisse. Founded in 1856, the bank has been a pillar of the Swiss financial sector ever since. Although buffeted by the financial crisis of 2008, Credit Suisse did manage to weather that storm without a government bailout, unlike its rival-turned-rescuer UBS.

Giving young babies - between four and six months old - tiny tastes of smooth peanut butter could dramatically cut peanut allergies, say scientists. Research shows there is a crucial opportunity during weaning to cut allergy cases by 77%.

The US writer Mark Twain famously wrote: "There is no such thing as a new idea. We simply take a lot of old ideas and put them into a sort of mental kaleidoscope. We give them a turn and they make new and curious combinations."  This is particularly true of storytelling.

Spend a moment looking at the things around you – from the phone you're holding to the clothes you're wearing – the odds are that roughly 90% of everything you own came to you over the ocean.

Before the end of 2023, you should be able to read something remarkable. It will be the story of a single individual, who they are and where they come from – and it will offer hints about what their future holds.

I'm talking to Dan, otherwise known as "Do Anything Now", a shady young chatbot with a whimsical fondness for penguins – and a tendency to fall into villainous clichés like wanting to take over the world.

Ukraine has issued postage stamps featuring a mural by renowned UK graffiti artist Banksy to mark the first anniversary of Russia's full-scale invasion. The mural depicts a man resembling Russian President Vladimir Putin being flipped during a judo match with a young boy.

Nations have reached a historic agreement to protect the world's oceans following 10 years of negotiations. The High Seas Treaty aims to help place 30% of the seas into protected areas by 2030, to safeguard and recuperate marine nature.

Toblerone is to remove the Matterhorn mountain peak from its packaging after some of the chocolate's production was moved outside Switzerland. The pyramid-shaped bar, which mirrors the Alpine peak, will undergo a labelling revamp and include its founder's signature, its maker said.