If you didn't know the using statement given in the title is valid, then congratulations! Now you do. ;-)

Why would you use this instead of the more general using Earth.LivingBeings.HomoSapiens.Female? Well:

To Avoid Conflicting Class Names

Suppose you Autopsy.cs uses both Earth.LivingBeings.Humans.Female as well as the Earth.LivingBeings.Monkeys.Female classes. One way to resolve the naming conflict is to laborously type out the fully-qualified class name each time you use it. The other way is to:


using HumanFemale = Earth.LivingBeings.Humans.Female;
using MonkeyFemale = Earth.LivingBeings.Monkeys.Female;