Add Yahoo as a preferred source to see more of our stories on Google. Though I'm sure everybody in the whole entire world would love to live forever for our pets' sake, that just doesn't always happen ...

Puppies often cry during a transition period, such as littermates leaving, to help them adjust to their environment.

Add Yahoo as a preferred source to see more of our stories on Google. Just watch the following sweet video to see her reaction. Here's another photo of the absolutely adorable puppy that her assistant ...

Though I'm sure everybody in the whole entire world would love to live forever for our pets' sake, that just doesn't always happen. Things get in the way. If we're lucky, we have some time to prepare.