Instructions
Set up a new caged exhibit by selecting the fences menu on the left-hand side of the screen. Another menu will appear with a variety of fence types. From here, select the iron bar fence.
Create a perimeter fence by dragging the mouse along where you want the unicorn exhibit.
Finish off the new exhibit with a gate door. Upon completion, a pop-up will appear requesting a name.
Name the exhibit "Xanadu," making sure the "X" is capitalized, and click "OK."
Select the creatures menu in the side bar. Scroll down about halfway and a unicorn will now appear as an option. You can toggle between male and female by pushing on the gender symbol button. The males are orange and black, while the females are white.