frostmourne

While there are hundreds of millions of sperm around the egg it still finds a way to allow only one of them. But how does it do it? Is there a sort of door security or something? Or is it about the size

Hello everyone, here is my short first post. I’m 17 (will be 18 a month later) and graduated from high school this year and preparing for university. I found a dog on the street yesterday and adopted it