Shrinking mice

Some women in this world will be so jealous with mice.

You see those pregnant mice walking around all big and round (and i mean real BIG) sometimes it almost looks like they are 3 times there size.

But then another wonder on nature happens they give birth and then they are just back to their normal size. Without closely looking at these females you can't see that they gave birth. It's funny how they just shrink back to their normal size