I think that’s just identical twins, but fraternal twins are two separate eggs being fertilized, which is how you can have twins of different sexes
Comment on sometimes nature is a tattle tale
RogueBanana@piefed.zip 11 hours ago
I thought twins were always split from the same egg. Great and my only news source for learning, shit posts.
bamboo@lemmy.blahaj.zone 11 hours ago
Lumidaub@feddit.org 7 hours ago
The concept of “twins” is far older than any knowledge of eggs (in mammals) and sperm cells. Two babies come out at the same time, language decided to call those twins.
EggInDisguise@lemmy.blahaj.zone 11 hours ago
Identical twins, yes. You can have multiple eggs fertile at the same time. Two of my childhood friends were a boy and girl who were twins, obviously look quite different lol