A unicorn simply needs a horn, Game Of Thrones in a world of unicorns be a dragon shirt, hoodie, sweater and v-neck t-shirt. There are many animals that have horns, some of which are not too far away from the equine. Dragons need wings. No vertebrate has six limbs. We’d need to add more limbs, which involves changing the skeletal structure, the musculature, and rewiring the brain to control those. Then you need to adapt one set of limbs into wings that would allow a very large creature to fly. The wings are leathery, which is most similar to a bat. The largest bats weigh about 2.6 lbs and have a wingspan of about 5 1/2 ft. This means that you’d need very large wings to fly such a large creature.
