It’s shocking to watch and not what we expected.
When we first found the puppy bitten by the rattlesnake, we assumed it happened in the tall grass by the bird pen while on a walk with puppy owners.(See http://sneakingbliss.com/2018/08/26/rattlesnake-strike/) It just made sense that the puppy surprised the snake and in defense the snake bit. Yesterday, I reviewed footage of the puppy cam to see if I could observe any odd behavior after the puppies returned to the playpen following the walk. What I saw was unsettling to say the least. As the video plays, keep an eye on the right side of the ball pit.