That's the same thing, but presented even more bluntly as an open appeal to your baser desire for a mystery, but it's still clickbait nonetheless - it's present

That's the same thing, but presented even more bluntly as an open appeal to your baser desire for a mystery, but it's still clickbait nonetheless - it's presenting itself as a mystery without any further reason information other than "elephants died". "Endangered" is emotional content without any further information; all elephants are endangered (or at the very least vulnerable) so this is another hint that the title is emotional (clickbait) driven rather than a useful summary. The Guardian aims itself at people who like to consider themselves more intelligent than the average bear. The clickbait will therefore be toned down a little. Some people still prefer it to not exist at all, if possible.