Vets told him the rescue puppy wouldn't live long, so he started filming her once every day.

It's hard not to be charmed by little Pegasus, a frail, snow white puppy rescued by YouTuber Dave Meinert. In the video's description, Dave writes, "When I rescued Pegasus, I was told she wouldn't live too long so I set about filming her every day..."

Dave's video details how he was told Pegasus had little chance of survival and that her quality of life would deteriorate rapidly. In the first few seconds, though, you can tell how charmed Dave is by the rambunctious pooch.

This heartwarming love letter to Pegasus has made many curious about her. Dave, unfortunately, had to give her to another home where she has a doggy friend.

Subsequent to making the video, I had to travel a lot, and struggled with keeping her where I was living. A saviour stepped in and helped look after Pegs while I tried to make a plan and she moved back and forth, which was disruptive for her. After months of no solution, it was obvious that her new set up with incredible love, a bigger garden and a new best friend in Luna, another great dane was more than I could offer.

Oh, Dave. Is it any coincidence Meinert rhymes with sweetheart?

Sources: YouTube