Thank you for downloading the American Lion. These larger than today's lions survived in the tundra of Western U.S. Enjoy.

"Move the .ztd file into the dlupdate (and not dupdate) folder if one exists in your Zoo Tycoon folder; otherwise move the .ztd file into the Updates folder that is in the Zoo Tycoon folder."

The default is C:\Program Files\Microsoft Games\Zoo Tycoon

Thank you to Fern and Jay for their invaluable encouragement guidance, and expertise. 

--JohnT--

