Autodefenestration observation

[Spoilers for Jurassic World: Fallen Kingdom]

In references to the fight between Blue and the Indoraptor in Fallen Kingdom, I've seen the Indoraptor falling out of a window getting attributed to Blue causing it, and I've referred to it as her throwing him out the window, myself. But after a closer look, that's not actually what happens: it's very quick and unclear, so it's hard to see especially if you're watching at a theater and can't pause, but turns out he jumps out instead. He just lands in the clumsiest way possible and rolls down the rest of the roof hitting every corner along the way, so not exactly according to plan, but that's what you get when you don't look before you leap.

Beauty and grace, about to fall on his face

But that does make more sense. Blue is trying to keep the Indoraptor in the room, or at least from going after Owen and Maisie, so tossing him in their direction is pretty counterproductive.

I'd figured maybe things got bad enough for her that she had to, and that he hit the window was more of an accident. The only way she could have "thrown" a creature bigger than herself anywhere is by kicking, after all, the same way the Indoraptor sends her flying across the room at one point by kicking her off him, when she gets him vulnerable on his back for a moment. But if this is what happened instead, that makes more sense for the Indoraptor's behavior, too.

It seems pretty obvious to me that the Indoraptor doesn't actually want to fight Blue. Don't get me wrong, I'm sure they would both consider the other dying a perfectly acceptable outcome here - all they know about each other is their conflicting interests in this situation, after all - but killing each other is not the goal for either of them. Blue is just trying to defend her pack, or what's left of it, and the Indoraptor is just trying to get back to pursuing his prey, and said prey as it happens is what's left of Blue's pack.

In the fight between just the two of them, Blue is the one attacking, and despite being smaller, she also has the advantage of being probably a way better fighter. She's grown up bickering with her sisters, fought the Indominus rex, and has survived and fed herself alone in the wild between movies, while the Indoraptor has never even gone outside before. The threats he's accustomed to are humans, who are only as strong as the cage separating them from him is. He bites and scratches (and kicks on that one occasion) back, but he doesn't keep doing that for longer than is necessary to get her out of the way, and is trying to get away from her.

When they both fall halfway out a window, causing the humans to fall off the ledge, though the situation looks pretty scary for Blue, the Indoraptor doesn't seem to be even trying to bite her, but past her. Apparently what happened just before the window broke is that he tried to jump through already then, having seen the humans on the other side, and Blue put herself between them as an obstacle.

So, considering all that, if the fight took a turn where Blue is on the ground and unable to fight back immediately, it makes more sense that the Indoraptor took that opportunity to leave her behind and get back to what he was doing, than that he would have given her reason to throw him off her urgently enough to not care in which direction. Blue is not a target to him, she's a rival for the target.

Speaking of figuring out what exactly happens in this fight, I'd also wondered about why it takes so long for Blue to show up on the roof. One reason is probably that she's smarter about finding a safe way down, and though she's in a hurry, she started the fight already injured, so jumping out a window heedless of what she lands on isn't a viable option. But, there's also the fact that there's not much she can accomplish by just following the Indoraptor.

You see, another thing I'd wondered about is how much time Claire gets to have to communicate her plan to Owen and aim without the Indoraptor deciding to just kill her instead, but what do you know, there's a reason for that. The Indoraptor is trapped on that roof after he follows Owen and Maisie onto it, because the glass won't support his weight, and the center beam that does is too narrow for him to turn around on. He can walk backwards, but now Claire is blocking his way and she has a gun. Generally you want to approach an armed threat with your own weapons first, and his teeth and claws are at the other end.

One of many reasons the boobs&butt pose plaguing superhero comics is a terrible fighting stance

The glass roof is awkward for the Indoraptor to walk on, too, and not exactly great to pounce off of, so Blue circles around to a steadier rooftop from which she can flank him. By the time she gets there, the humans seem to have a plan and things under control, so she doesn't interfere, but when their methods fail it's time for more of hers. The ceratopsian skull part is probably a coincidence for both her plan and the humans', it needs too much luck to actually work. I'm pretty sure what Blue had in mind was just a round 2 of biting and scratching. Maybe she was going to do a surprise attack, but suddenly Owen was in immediate danger again, so she had to draw attention to herself first.

I doubt she would have resorted to half this much lack of self-preservation if Owen's life hadn't depended on her. If her parent hadn't been among the Indoraptor's prey, she would probably not have even gotten involved, because she's a predator, too, and what business is it of hers that another predator is hunting. Animals usually have a pretty high threshold for getting into fights, because an injury can easily be fatal for a wild animal - if not immediately, then by infection or by affecting the animal's ability to hunt or escape predators in the future.

Realistically the Indoraptor, too, would probably have judged trying to hunt this prey not worth the effort, since he's already found that there are humans running around without a raptor bodyguard. On the other hand, maybe he doesn't even realize the humans are what Blue is attacking him for - there he is just trying to have a snack but this one raptor keeps trying to fight him, wonder what's her problem. Or, more likely, he doesn't know Blue is protecting a packmate rather than contesting him over what they both see as prey, but it's hard to say how much that difference matters, as either way she's letting his food get away from him.