Scatological science: how poo analysis could help save endangered species

Three separate species of banded langur have been identified after DNA analysis of their faeces, paving the way for targeted conservation strategiesAcross the world, conservationists, scientists and volunteers are racing to save thousands of endangered species. And for some, their efforts have not been wasted. A recent report found that conservation programmes have saved several bird and mammal species from extinction in recent decades.But the numbers of many data deficient species and sub-speci