I used to think that the females of any animal can decide to have babies whenever they want to. I did not realise that in order for an animal to reproduce, the female needs an injection of sperm from a male of the same species. The was a lengthy period where I knew that we need a man and a women (although I now know that a women can decide to have children without having to fall in love with a man thanks to artificial semenation, though we need men to donate their sperm prior) to have a baby, but I still thought that other animals can have babies whenever they wanted to without a male.
A childhood belief about general

others believed things like this
- I used to think that to desex an animal meant to turn it from a male to a female or female to male.— Phil
- My sister and I thought cats and dogs were the same animal, the dogs were male and the cats were female.— Paul
- When I was younger, I used to believe toads were male and frog were females.— Claude-Eugène
- When i was younger i thougth that when you grew up you could decide whether you wanted to be a girl or a boy. Anon
- I used to belief that women had babies by pressing their belly buttons!— amy
- I thought the word mailman was male man and it seemed dumb to me as aren't all men male?— andalite