Tony Cholerton created Robovacc to inoculate a timid tiger at London zoo – but says it could administer jabs to badgers

It began with the tiger who wouldn’t come to tea. Cinta was so shy that she refused to feed when keepers at London zoo were around, and staff wondered how they would ever administer the young animal’s vaccinations without traumatising her.

So Tony Cholerton, a zookeeper who had been a motorcycle engineer for many years, invented Robovacc – a machine to quickly administer vital jabs without the presence of people.

Donald Trump will lead the largest US delegation ever at the World Economic Forum, as others plan a fightback against his policies including his latest tariff threats

“A Spirit of Dialogue”: the theme for this year’s World Economic Forum, the gathering of the global elite in the sparkling Alpine air of Davos, seems a heroic stretch, when star guest Donald Trump has spent the past year smashing up the world order.

The president will touch down alongside the snowcapped Swiss mountains with the largest US delegation ever seen at the WEF, including the secretary of state, Marco Rubio, the treasury secretary, Scott Bessent, the commerce secretary, Howard Lutnick, and the special envoy Steve Witkoff.

• Nix to undergo surgery after breaking ankle in OT

• Season-ending injury suffered late in playoff win

• Denver advance despite injury to second-year QB

Bo Nix broke his right ankle late in overtime of the Denver Broncos’ divisional-round victory over Buffalo on Saturday and will have surgery that will sideline him for the rest of the playoffs.

Coach Sean Payton delivered the stunning news about his second-year quarterback in the aftermath of Denver’s biggest win in a decade. Backup quarterback Jarrett Stidham will start the AFC championship game next weekend.