Pumas (also called panthers, cougars, or mountain lions) are normally solitary cats but scientists are claiming that preying on penguins is altering their behavior of the pumas and making them to be more sociable towards each other and while this might make the reader think at first that there might be something within the penguin flesh that is changing the psychology of the puma from being solitary to gregarious, this does not appear to be the case at all. It just so happens that the penguins just happen to be much more plentiful than other animals hunted for food and plentiful enough for pumas to hunt within the same territory and vicinity without rivalry or hostility. https://www.livescience.com/animals/land-mammals/pumas-in-patagonia-started-feasting-on-penguins-but-now-theyre-behaving-strangely-a-new-study-finds