Yellowstone, USA wolves hunting, video

This 30 July 2019 video from the USA says about itself:

After a long winter, the wolves of Yellowstone go after weaker prey.

RNA — the short-lived transcripts of genes — from the “Tumat puppy”, a wolf of the Pleistocene era has been isolated, and its sequence analyzed in a new study by Oliver Smith of the University of Copenhagen and colleagues publishing on July 30 in the open-access journal PLOS Biology. The results establish the possibility of examining a range of RNA transcripts from ancient organisms, a possibility previously thought to be extremely unlikely because of the short lifespan of RNA: here.