Pangolins are the world’s most trafficked mammals, but there is evidence that they were the source of the new coronavirus – which could end the trade Coronavirus – latest updates See all our coronavirus coverage Covid-19 is a human disaster. However, for one group of animals, there may be a silver lining. Pangolins are one of the most heavily trafficked animals in the world, and as a result they are endangered. But in the past few weeks they have been linked to the initial outbreak of the Covid-19 disease in China. The evidence is inconclusive, but it has already prompted the Chinese government to take action. If more actions against the wildlife trade follow, the incident could prove to be a turning point for pangolin conservation. A key question is where Covid-19 came from. Many animals carry coronaviruses and are potential sources of infection. That is important to know, if only because it should help us prevent future outbreaks. Several ideas have been proposed, but arguably the most dramatic is that