Can a male and a female be identical twins?
Can a brother and sister be identical twins?
Can the son of an identical twin have twins? What would happen if identical twin sisters marry with identical twin brothers? How identical are identical twins? Why are identical twins not identical? Why aren't all human siblings identical? What does it feel like to have a twin sister or brother? How do identical twins differ from fraternal twins? Why do identical twins look different? Do twin brothers have identical sized penises? What are the chances that twins will be the same gender, fraternal, and look alike? If one set of identical twins have each have a child with another set of identical twins, is it possible that both kids could be identical? How do non-identical twins form? How is this different from identical twins? How do parents tell identical twin babies apart? What are some interesting/unknown facts about identical twins? Can brother and sister have sexs? Do identical twins have identical voices? What is it like having an identical twin? What is it like having twins? Do identical twins often love the same man/woman? What is it like to have a brother or sister? Is everything a competition when you have a twin brother and/or sister? How many parents want to have twins? What is it like having an identical twin that you hate? How hard is it to be the parent of conjoined twins? What is it like not having an identical twin? How are non-identical twins made? How does that differ from identical twins? Is it weird for two single brothers to live together? How does it feels to have a sibling? What's it like to have older brother or sister? What are the pros and cons of not having a sibling?