This right here? Is a terapede. It's a giant arm sized bug that can eat you to the bone in minutes. Maybe seconds, I don't remember. It's quite painful. Don't wander too deep into the caves or forest, especially if you see any dead animals around.
And this here is a raptor. I think we just used to call them bitey lizards back before anyone remembered what dinosaurs were. Stephan is strong enough to fend one off, but for the most part, they are killing machines. Again, be careful not to wander too far into the tunnels. They hunt giant fat lizards, but will definitely not say no to a person. There's a Judge called "Beast" that controls them, and he's had them attack us in large numbers before.
[INSERT ANY OTHER DANGEROUS ANIMALS I FORGOT THAT MONO WOULD KNOW OF 8Dd]