https://undark.org/2016/10/17/de-extinction-resurrecting-heath-hean/
The Heath Hen could be a huge part of our worlds scientific discoveries as the knowledge of DNA genes are increasing every day. The article states, “The heath hen could well be the gateway bird to being able to bring genetic rescue to a wide variety of endangered and possibly extinct birds that we would love to have back and see again in our backyards.” The reason why this is so important is because having one animal open the door to different possibilities in scientific research is tremendous.https://reviverestore.org/projects/woolly-mammoth/progress/
Within this document, it describes the ways Revive and Restore sees the wooly mammoth being reconstructed as it was before. For example, all of the fur it has on the outside including having low oxygen levels. The next step for bringing back the wooly mammoth would be the genome project brought up by Revive and Restore. It is a crucial part of understanding the DNA within it.
https://www.sciencemag.org/news/2014/06/humans-blamed-loss-mammoths-and-other-giants
The proportion of the large animals that died out during that interval were mostly cause by the global expansion of humans. Wooly Mammoths were massive creatures and also the climate would be a factor if the wooly mammoth came back today. We have to take into accountability that the world has changed since they have roamed the earth last. Humans were a small part of the loss of them because of the widespread of humans on new land.