Completely docile unless you attack it. Already bred a high pair got a 245 baby. Took a long time to fully mature though. About the same as a Rex. When running away go between rocks as it is surprisingly fast.
DO NOT FIGHT IT WHEN ITS FIGHTING BUGS!! TRUST ME, JUST RN IT TOOK OUT ALL 28 OF MY LEVEL 50+ RAPTORS AND THE MEGATHERIUM WAS ONLY LEVEL 14!!!!! THESE THINGS ARE BEASTS NEVER FIGHT THEM WHEN THEY HAVE AN ORANGE CLOUD AROUND THEM!!