Harper's Bazaar on MSN: The 5 Best Hair Dryers for Fine Hair
You (probably) already know that fine hair needs its own shampoo and conditioner to look its best. But did you know that it also needs a certain type of hair dryer? Fear not: A great blowout is still ...
Add Yahoo as a preferred source to see more of our stories on Google. USING A HAIR dryer is the key to getting a professional-level style at home. Think about it: your barber or hairstylist most ...
One twin, the 'donor' twin, is small and anemic, the other, the 'recipient' twin, is large and polycythemic. The lives of both twins are endangered by this condition.
There are different types of twins, identical and fraternal being the most common. Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. These twins are...
If you have a twin brother or sister, the two of you are always the same age. There are identical twins, who have the same DNA, and fraternal twins, who are more like two siblings who happen to be born at the same time.
Twin, either of two young who are simultaneously born from one mother. Twinning, common in many animals, is of two biological kinds: the one-egg (monozygotic), or identical, type and the two-egg (dizygotic), or fraternal, type.
Fraternal twins happen when two different eggs are fertilized by two different sperm (typically, from the same donor) in the same ovulation cycle. They come from two separate zygotes, so they each have different genes. Identical twins are the result of one zygote that splits in two.