The researchers found DNA in the endangered animal feces, shed hair, saliva found on killed prey and simultaneously tested them in the same test tubes. This method and technology proved to be highly effective at comparing the genetic characteristics of the DNA. The researchers stated this was an easy lab technique to implement, and can be done relatively cheap because it did not need extensive lab equipment. The data generated could be shared easily across other labs. The technique details, material and methods can be found, here. The current methods to gathering information take a long time, and when it comes to endangered animals, time is something that they don't have. The researchers at Standford have made their methods freely available to everyone-which I think is great because it makes it easier to share data across borders.