YouTube video of a baby's first crawl is going viral, mainly because of its heartwarming ending.
A father posted the video of his daughter slowly and enthusiastically crawling towards the family dog.
"Our little girl crawls for the first time on video but what happened next melted our hearts!" said the father. "Labs are the best family dog ever!"
Click here to watch the video on YouTube: http://youtu.be/kshb9a6mZS8