as far as I know, there is no large carnivore who would abandon actively eating a killed meal to chase live prey. chasing and hunting live prey is a risk, as a healthy live creature has the capability to injure a carnivore, or tire it out through the chase. If there is, say, a giant pile of dead bodies to eat, which abandoning would allow other carnivores or scavengers to steal and eat instead, it makes no sense at all.
please stop doing that thing
The sole exception I can think of is if the large carnivore thought the live prey was another carnivore or scavenger, and was chasing them as a threat display to ensure they didn’t steal the dead bodies. Even in that case, though, it would only be a short, mock charge followed by returning to the pile if the opponent fled. With possibly whatever the animal’s equivalent of “and stay out” would be.
Another thing: most carnivores don’t like to fight. They have to mug something to death for every single meal, they have to stay in top shape while conserving their energy. Meanwhile, herbivores have plenty of extra energy because they eat stuff that comes out of the ground and doesn’t fight back, and they often live in big social groups, so they’re better at handling stress and more used to having to actually come to blows with other animals to get their way.
So like, a zebra will try kick your ass just to see what’s up. A tiger won’t do shit unless it’s damn sure it can take you. I’d rather come face to face with a cougar than a stag— have you seen videos of what happens to hunters when a stag catches a dude on the ground? the stag tears the dude apart. Not even to eat him. Just because the stag didn’t like what was going on and decided it was time to curb stomp a motherfucker.
So if you’re deciding what kind of Big Scary Animals to have be a threat, like, forget wolves and lions and eagles and velociraptors. Go drop in a moose.
This is why loud noise can scare bears away. It’s a threat display that normally convinces them that the charge isn’t worth the effort.
-Exception:
If a carnivore is Not That Hungry it might drop something dead to chase something that is doing Extreme Prey Behavior– but it’s not going to be serious about it. I’m thinking of things like a domestic cat that chases birds and mice for kicks. Honestly, I think that the t rex in Jurassic Park was a good example of predator behavior– she abandons something difficult (like the kids in the jeep) for the bright shiny thing she has been conditioned to understand means food (tightpants math guy with the flare + gruff dino man with flare). For the rest of the film, she chases things that run, and then quits and chows down once she has something. This has been one of my biggest beefs with the later JP films, especially Jurassic World– rather than the scares coming from being treated and stalked like prey by animals, the scares are based on monsters killing and eating randomly. (And what’s with the treatment of all the herbivores as good and gentle? Herbivores will fuck you up because they got scared or because you pissed them off and those are the two primary emotions of large herbivores– they won’t eat you, but they’ll still trample you).
+Addition:
The predators that aren’t snipers (like cougars or herons) tend to test individuals in a herd– they want to gauge your health and willingness to fuck somebody up before they commit to you as a target. If you stare them down with your cold dead eyes and gear up to wreck their shit they’ll piss off unless they’re completely desperate. (Like I said, the main emotions of prey animals are Time To Fuck Shit Up and Time To Run). So, I’m desperately tired of all these people running and screaming away from wolves and velociraptors and bears oh my.
Consider:
How much scarier fiction could be if predators acted like actual predators that can be intelligent and patient and are pressing around the edges of your party to find weakness and fear.
Ever gone back and read the original Jurassic Park book? Please don’t, fuckin’ awful I couldn’t even finish it for various reason but the predator behavior like this was a BIG problem. I got so angry at it…haha.
In many situations you’d be more likely to get chased and damaged by a herbivore feeling threatened than a predator already feeding (though push your luck there and see what happens…)
My favourite example of the “herbivores are harmless” fallacy is the
Cape Buffalo. If they’re unhappy about the presence of something that upsets them, they’ll make it go away…
…and if the
something-that-upsets-them
can’t run away fast enough (people, for one) then its going-away can be messy and permanent.
Someone (I think it was writer Robert Ruark) once described Cape Buffalo as “looking at you as if you owe them money.”
This lot all know you owe them money…
…but the big guy on the left knows how much, and that your repayment is late.
Kimchi and Justice 