I encountered one on Ragnarok, freaked out tamed it and was happily riding it back to my base when a stupid Raptor decided "I'm about to ruin this man's career" and killed my Unicorn. I have yet to find another one and I have a gravestone for my lost Charlie.
So, I had this game and got a Unicorn named Loona. Later, I had lost a pretty high level Trike and Carno. Only my raptor survived and when I got back a theri got in my base and killed Loona. I hate theris