I can't begin to tell you how relieved I was to find that I was not the only child that thought that dogs were male and cats were female. My mom has been teasing me about that for years. My husband believed that Tigers were girls and Lions were boys. Sounds logical to me.
A childhood belief about cats and dogs

you weren't the only one
215 of you believed this
- I used to believe that cats were all female and dogs were all male.— Rachel
- that cats were only girls and dogs were only boys. I definetly didn't get the whole reproducing thing yet.— Jamie
- i used to believe a dog was the male version of a cat.Anon
- I believed that all cats were female and all dogs were male. — Biologically confused
- i thought cats were girls and dogs were boys. Anon
- i used to believe that all cats were female and dogs were male!Anon