Thanks guys! I say I have two pit bulls because it is much easier and much less explaining, but he is technically a Staffordshire Bull Terrier. My best friend gave him to me because she had more dogs than she could give enough attention to. He is a people lover, and was spending more time crated than she or he felt good about.
Yep, they're sperm cells. And thanks, Watcher, I thought sperm might be interesting.