Gimians

Gimians are a supspecies of humans from planet Lopolop. They have wings and can fly around. They live as long as humans. Gimians do not grow wings until age 12, but in some rare cases they can be born with them. As they grow older, their wings will start to deteriorate, and they will usually be gone by age 80 for a healthy Gimian. An unhealthy Gimian can lose their wings by age 40 or less, but that can be changed by getting plenty of vitamin D, which will help their wings.