Be careful when traveling through the swamp, they can launch at you and drag you into the water. If you act quickly, with either using a Bola or Attacking, you can escape. A high level one will be extremely dangerous if unprepared.
The best way to escape these crocodilians and counter them is to go to a high ground like hill or big rock i know it cause of my experience. The pounce of a kapro is in a straight line so if your in a high ground the pounce will just cancel giving you the time to escape.
Probably one of the most surprising attackers in the game, a Kapro has to fly at your face and Inject it’s stamina depleting poison(I am not completely sure if this is a mobile thing), however, if you have a strong melee weapon on you, you can quickly escape via killing it and sprint onto your mount or raft if you brought one for the journey.
For all the noobs out there, if these things kidnap you in the swamp, here’s what to do. Take out your bow/ gun. Pray you have ammo and fire right into its head. This strategy has saved me countless times.
P.S. If you have a strong melee weapon such as a pike or sword on you, that also works.
This guy is my favourite so far, right from when I first meet him, I was a noob and wandered close to a swamp well he came flying at me missed and disappeared behind me, I'm like what the neck was that, climbed a big arse rock asap and looked around, bugger came bounding back towards me and leapt straight up that rock like it was a mole hill.
Tamed the bugger and took him hunting, came across my first raptor and shat myself thinking oh rap I am screwed, nope Kappa flys over my head, collects the raptor and pile drives it into the ground several meters away, hilarious. Always fun times with Kappa around.