On the Valguero DLC they spawn in the jungle
Kaprosuchus
The Kaprosuchus is a crocodile-like reptile commonly found around swamps. Though it is a smaller, weaker version of the Sarco, some survivors perfer it for its speed — both on land and in water.

Player-written tips for taming, using, and fighting the Kaprosuchus in ARK: Survival Ascended & Evolved.
If you get knocked off your tame by this and still have your wits, a simple shotgun to the face is useful.
When taming, use one person as bait, the Kapro will charge at the person, and then you both pin thanks in it. My friend and I got 4 from this strategy
ATTENTION ALL ARK MOBILE PLAYERS!!! YOU CAN NOT BOLA A KAPROSUCHUS ON MOBILE!!! Works just fine on every other version, just not on mobile. Up so noobs don’t make the same mistake I made.
Be careful when you abuse spyglass glitching in the swamp, cuz the lunge momentum gets multiplied by the spy glass do you get sent to the literal skybox
They will jump at you but when I tamed one it took 3 pieces of fish meat
Kapros are annoying at early levels, but at higher levels, you're just like alright mf (pulls out shotgun) hold still
Tranq a creature and carry it to your base to tame
Stay one metor away because they can leap and dash and bite for face it's scary in first mode
You can shoot tranqs at it from the back of a tall creature and it won’t be able to jump at you, but make sure your creature has high health since the kaprosuchus bite attack decreases stamina and you won’t be able to run away,
Easy to kill with a kangaroo. All you have to do is face the Kaprosuchus when it runs at you. Use the kick attack the the moment it’s feet leave the ground and you’ll send it flying away.
When trying to tame don't get kill by rapter
If you have good armor and a good sword nice try kapro
All you need is a bola to the snout and have for dinner
A must have dinosaur. As I was taming one, things went downhill fast. A killed about four titanboas and finally retreated once tamed. Just as I left, a titanboa appears out of nowhere and knocks me out, leaving me defenseless. Luckily, my Kapro killed it before any major damage…
A must have dinosaur. As I was taming one, things went downhill fast. A killed about four titanboas and finally retreated once tamed. Just as I left, a titanboa appears out of nowhere and knocks me out, leaving me defenseless. Luckily, my Kapro killed it before any major damage was done. Just as I was about to come out of unconsciousness, another titanboa began to attack. Again, my Kapro killed it. This Kapro saved my life twice and I’m very grateful to have such a loyal friend now. They will pull you out of a pickle and it’s a good tame to have. Great for capturing smaller creatures that attack you
Great base guards. 10 150 perfect tames of these will kill Rexs super quick.
They eat at 120food not 80food timers are off.
Bolas work on these thick boys. Trust me
To tame this thing, just Continuously punch it on the nose when it has grabbed you, then feed it any excess meat you have in your inventory.
P.s. these are awesome for guarding your base from troodons and dilos.
Very useful on scorched and versión easyJet to Tame