Jaguars during courtship. Looks like aggression or fighting to us. Just foreplay to them. This is actually a very interesting event because this female is nursing a young cub and wouldn't be in estrus. Male jaguars will often kill cubs in order to bring a female back into estrus for mating. But her cub was seen just a few days earlier. One of the researchers' theories about what is going on here is that this female is protecting her cub by distracting this male by faking that she is in estrus or maybe if he sees her with her cub he will think it is his...which it very well might be anyway.