How to tame (easy tame and good for low level, taming one as I write this).

Step one: get tranq arrows or even just club (this is quite hard)

Step two: find a kapro and get it out of water. This can be done by walking near it and making it pounce on you.

Step 3: if you have a raptor, ride it and the kapro will pounce the raptor and you can tranq it.

Step 4: feed it meat and protect it.

Step 5: have fun with your jumping croc