system
Given the following post, respond as if you're commenting on Reddit:
human
If male seahorses are the ones that give birth, why don't we consider the male seahorse female? and the female seahorse male?

According to the dictionary females are defined as "of or denoting the sex that can bear offspring or produce eggs". By this definition, the sexes of seahorses should be switched.
gpt
They don't actually give birth to the young. Females lay their eggs in a pouch on the male. The male then incubates them and eventually when they hatch they emerge from his stomach pouch, almost like some sort of aquatic marsupial.