When a baby roll rat pops out, leave it on wondering because it will gather berries, feeding itself. As long as there are bushes it can access, and it can't escape its enclosure, it will raise itself making it one of the easiest tames to raise. All you have to do is imprint!
When tamed,the moment it receives damage it can attack back immediately,something like instant counter attack,which is very useful against a pack of dinos. Also its a version of Therizino on russian drugs for abberation,best wood gatherer.
Just a little heads up, this thing's saddle has a durability bar. Guess how I found out?
Visiting ab using this armored scrotum's magical ability to blackbox itself with wood in 2 minutes. Completely naked, no weapon, no other dino. Carelessly rolling down crab river at mach 6 and poof. Ejected me into the water to get mercilessly beaten to dust by 5 karkinos, two spinos, the liquid that seems to be made entirely of piranhas, and 3 sarcos.
Make an extra saddle or two if you take this thing out.