OK, so there's this book called The Lion, the Witch, and the Wardrobe where a magical lion named Aslan is killed but comes back to life.
When I was a kid, I thought that the reason was because he had nine lives.
A childhood belief about cats and dogs

others believed things like this
- I used to think that a sea lion was a hybrid of a seal and a lion.Anon
- when i was little i thought my cat would turn into a lion when he got older.Anon
- I used to believe that the meat dish 'tripe' was lion.— Kent
- when ever i ate broccoli i thaught the monkey from Lion King was in there— Simon
- I grew up believing meerkats have human hands because I learned about meerkats from The Lion King.Anon
- I used to think a tiger was a female and a lion was a male... until I remembered Tony the Tiger.— Alysia