The Guardian’s picture editors select photographs from around the world

Conservationists fear up to 11% of Tapanuli population perished in disaster that also killed 1,000 people

Indonesia’s deadly flooding was an “extinction-level disturbance” for the world’s rarest great ape, the Tapanuli orangutan, causing catastrophic damage to its habitat and survival prospects, scientists warned on Friday.

Only scientifically classified as a species in 2017, Tapanulis are incredibly rare, with fewer than 800 left in the wild, confined to a small range in part of Indonesia’s Sumatra.

• Prize fund boosted to £2m for racing’s premier Classic

• Aim to revive glory days and attract six-figure crowd

Epsom racecourse has announced a £6m, five-year plan to revive the flagging fortunes of the Derby, the world’s most famous Flat race, which includes a boost to the Classic’s prize fund to £2m, free admission to the main enclosure for under-18s, free parking and the installation of a bank of “bleacher” seats along the inside rail to give racegoers a “bird’s eye” view of the final three furlongs.

The Coronation Cup, for older horses over the Derby course and distance, will also be moved from the first day of the meeting to join the Derby on Saturday’s card.

Balshaw, who joined the Tate in 2017, helped steer organisation through Covid-19 and fluctuating attendance figures

Maria Balshaw is to step down as the director of Tate in 2026, after a challenging nine-year tenure when she steered the organisation through the Covid-19 pandemic and had to deal with fluctuating attendance figures and financial instability.

Balshaw, who joined as director in June 2017 after a celebrated spell as the leader of the Whitworth in Manchester, said it was a privilege to serve as director but now was the time for her to move on.

With its soaring ceilings, meandering pathways and mesh-like walls, Taichung Art Museum, designed by Sanaa, sweeps visitors from library to gallery to rooftop garden for rousing views

Walking through the brand new Taichung Art Museum in central Taiwan, directions are kind of an abstract concept. Designed by powerhouse Japanese architecture firm Sanaa, the complex is a collection of eight askew buildings, melding an art museum and municipal library, encased in silver mesh-like walls, with soaring ceilings and meandering pathways.

Past the lobby – a breezy open space that is neither inside nor out – the visitor wanders around paths and ramps, finding themselves in the library one minute and a world-class art exhibition the next. A door might suddenly step through to a skybridge over a rooftop garden, with sweeping views across Taichung’s Central Park, or into a cosy teenage reading room. Staircases float on the outside of buildings, floor levels are disparate, complementing a particular space’s purpose and vibe rather than having an overall consistency.

Colour-coordinating couples are nothing new, but Timothée Chalamet and Kylie Jenner still caught the eye

When the Hollywood star Timothée Chalamet and the media personality and businesswoman Kylie Jenner appeared at the LA premiere of his new film, Marty Supreme, this week, they appeared to have been Tangoed.

Dressed head to toe in matching bright orange outfits, made by the LA-based brand Chrome Hearts, they drew strong reactions online, and not all negative. “I have now confirmed there is such a thing as too much orange,” said one on Reddit.

Men are suspected of ‘mass killings, sexual violence and deliberate attacks in El Fasher’, says Foreign Office

The UK has placed sanctions on four senior commanders of Sudan’s paramilitary Rapid Support Forces suspected of involvement in “heinous” violence against civilians in the city of El Fasher , but decided not to take any action against their key military and diplomatic backer, the United Arab Emirates, or their chief commander.

British officials suggested they preferred to use their leverage with the UAE and the RSF commander, Mohamed Hamdan Dagalo, known as Hemedti, privately, but admitted there was little sign of a ceasefire in Sudan’s near three-year civil war.

It started with a goat. Now – via a degree for developers and an incubator for startups – the tiny city is churning out world-famous video game hits. What is the secret of its success?

On 26 March 2014, a trailer for a video game appeared on YouTube. The first thing the viewer sees is a closeup of a goat lying on the ground, its tongue out, its eyes open. Behind it is a man on fire, running backwards in slow motion towards a house. Interspersed with these images is footage of the goat being repeatedly run over by a car. In the main shot, the goat, now appearing backwards as well, flies up into the first-floor window of a house, repairing the glass it smashed on its way down. It hurtles through another window and back to an exploding petrol station, where we assume its journey must have started.

This wordless, strangely moving video – a knowing parody of the trailer for a zombie survival game called Dead Island – was for a curious game called Goat Simulator. The game was, unsurprisingly, the first to ever put the player into the hooves of a goat, who must enact as much wanton destruction as possible. It was also the first massive hit to come out of a small city in Sweden by the name of Skövde.

A margarita dressed in a red vermouth coat with white tequila trimmings … ho ho ho

This smoky, deep-red cocktail takes its cue from our Latin roots, but with a seasonal twist. The mix of mezcal, tequila and vermouth is warming and vibrant, while pomegranate and rosemary lend a winter accent that makes it as fitting for a Christmas gathering as for a relaxing night in.

Maria Yanez and Carlos Socorro, Tiny Wine , London W1