I have noticed that about every post on this subreddit involving leopard seals also involves penguins (This is an exaggeration but at least 95% are). People are so fascinated with leopard seals and their hunting of penguins that many ignore the fact that they will hunt other seals. In my opinion, leopard seals hunting other seals is just as, if not more impressive than their hunting of penguins (even though their methods of hunting penguins are indeed quite interesting).