London Zoo among names to sign petition calling on action from Rishi Sunak. / Breeding schemes for endangered animals such as rhinos and monkeys are being harmed by Brexit red tape - zoos have warned.

It has been another gloomy week on the sunlit uplands of sovereign Britain, as a senior minister accused the EU of seeking “petty revenge” – and then hinted that the government might ban imports of European mineral water and seed potatoes.

A zoo says its conservation programme has stalled due to a lack of post-Brexit paperwork.