This amazing sex video appeared on the excellent Pharyngula blog by the US atheistic biologist PZ Myers [access]:
This National Geographic video provides us with new insight into the difficulties of being a hyena. Among humans, these animals have acquired a particularly negative reputation, which they surely do not deserve. They're depicted as cruel, treacherous, greedy, "piggish", laughing devilishly and obsessed with kinky sex. Even in Africa, where people should know better, hyenas were thought of as the steeds on which sorcerers and witches traveled around. It's true, however, that it might not be a great idea to bring home a pair of hyena pups with a view to bringing them up as pets. Now, I wouldn't be surprised if a reader were to inform me that my judgment on this question of household hyenas is wrong. In any case, the criterion of evaluating wild animals by their potential as pets is ridiculous.