I have a question. If i hit a titanosaur with a itchy will it aggro on me? I mean I hit it only with itchy and after he goes low hp i'll kill it? Does it works?

I found 2 near the 2nd moutain in artic. They were male and female. Is it normal or I am lucky?

I've only round one,a lvl 1 male,so they are vert rare...