They sure do! [He stopped questioning this stuff ages ago. It's just better not to even wonder about why pokemon breeding works the way it does.]

Mostly yellow... [He moves over to the bed and picks up one of the Snorunt eggs.] This one, right? This is a Snorunt, and it's actually not a ghost. At least, not when it hatches. They have kind of a funky evolution path. If you just let them reach a certain level, they become a Glalie. But if you have a female and you use a dawn stone on her, then you get the part ghost type Froslass. Which is... [He turns the camera to point it at his own Froslass, still floating lazily but at the moment refraining from shooting anybody.] what Crystal is.