User blog:StarMaster101/Dinosaur gone missing.

So I was walking towards my raptor pen and one of them were missing. No items to tell me it died or escaped. I put a lip made of a block that it couldn't suffocate in, as I have seen it put it's head in it and nothing happening. Although, is it possible it can climb blocks on the bottom of it? And if it can, can it get on top of blocks from the bottom of them? Because I was building a 3 block line across the pen as I was trying to build something like from the Jurassic World movie. I don't know if anything will pop up in chat if it dies, but nothing did. I have a map mod installed that shows me what kind of mobs are around (Tamed, hostile, and peaceful), and I can't find it. The raptor was nametagged and had plenty of food in it's feeder, nothing obstructing it's way to it. It even had a bunch of chickens just walking around.