They have been there for a while by. I' m originally from Falls City and spent a great deal of time in the river bluffs. The landowner where I hunted lost a pig to one over ten years ago. I saw the tracks and the evidence. I also did/do a lot of coon hunting and a lion was treed in Fillmore, Mo at a night hunt I was attending. That is just across the river from home and that was 15 years ago. I know what you are saying though, the Game and Fish deny it. The neighbors to the property I hunted have video of a cat out there front window. Several videos taken on several occasions ten years ago. When confronted with that the Game and Fish gave the someone turned a pet loose answer. Gotta love those guys protecting our natural resources.