I just couldn't get past the fact that Ragnar basically lived IN THE STOMACH of this thing, overnight. Not to mention that Bo followed the raptor to it's nest, marked it's location, went back to recruit & equip the war party, camped overnight, scaled the cliff, & the raptor shows up, probably from maybe hunting, WITH THE KID STILL IN IT'S STOMACH.
LOL
I'm sure that there's a canon explanation, like the raptor has several compartments in it's guts, with one that particularly is evolved to keep prey alive until it's ready to eat it.