Dex-chan lover
- Joined
- Mar 4, 2018
- Messages
- 290
Unlike identical twins fraternal twins don't separate, they were already separate. When you get chimeric individuals like this it is from one of them absorbing the other very early on.There's also "genetic chimeras" which are people/animals with two or more sets of genes because they were going to be non-identical twins that didn't separate in the womb.