OLD THREAD REPOST
Komodo dragons are one of a handful of vertebrate species who are capable of parthenogenesis - "virgin birth" - as well as sexual reproduction. But a female komodo dragon who reproduces asexually can only create male babies, because nature is weird like that. Let's explain why.
You probably learned at school that sex is determined by XX chromosomes to make a female, and XY chromosomes to make a male, but that isn't *quite* true.
Some animals use altogether different systems. The komodo dragon is one species who instead has a ZW system of sex determination (along with birds, some fish, some crustaceans, many reptiles and some insects).
(Also it's more complicated than that in animals that do have the XY system).
Vagina Museum
John Terwiske
El Diablo Roboc 😈🤖