Reply to comment by 812many in The case of a patient who had COVID for 318 days helped scientists discover a new route for dangerous coronavirus strain emergence. They found mutations enabling T cell escape. Keeping track of mutations is crucial for understanding, monitoring, and controlling the pandemic by Skoltech_

Reply to comment by abaram in Compared to wolf pups and kittens, dog puppies tend to spontaneously match actions demonstrated by a human — even in the absence of food rewards by marketrent