User blog comment:Adsper/All Possible Mobs/@comment-212.200.134.98-20180613183251/@comment-6040659-20180624185519

"It apparently could also expand its jaws like a snake to swallow bigger chunks of flesh and small prey whole. (This probably would be very difficult, and wouldn't make a whole lot of sense to put it in minecraft)"

The animation itself will be a piece of cake. Getting the Carnotaurus to actually pick something up and swallow it will be hard.