Growing up in Florida I always saw cows and horses in pastures together. I always thought the cows were boys and the horses were girls. When they had a baby together, if the horse had a cow it was a boy, obviously, and of course a horse baby would be a girl.
A childhood belief about general

others believed things like this
- When I was little I thought cows married horses, cows were all female and horses were all male. — Sheila
- I used to believe that cats were the girls and dogs were the guys. Same with cows and horses.Anon
- I believe there are horses making the car go fast when people told me the horse power of a car.— Jake
- I used to believe cows were ugly horses— Marlene
- I used to believe, as a child, that horses were male cows.— Martin Taylor
- I used to believe that milk came from cows, so water came from horses. hahah— Melissa O'Connor