(Serves 4) 20 very large pasta shells – conchiglioni50g diced pancetta1 shallot peeled and diced100g fennel and rocket pesto – or other pesto4 tbsps fresh breadcrumbs75g ricotta2 garlic cloves, peeled ...

Researchers have embarked on a mission to save what some consider to be the world's most beautiful snails, and also unlock their biological secrets. Endangered Polymita tree snails, which are ...