The sight of this dog plunging into the pool to save her struggling puppy is a testimony to all the best things about dogs: their intelligence, their bravery, their human-level ability to love and support each other. It also reinforces all the worst things about humanity: Put that camera down, sir or madam, and go help that puppy! Your dog is racing to help her offspring and you're just keeping the camera steady? Maybe the owner had seen the dog save the puppy in the swimming pool before and knew not to worry. But if that's the case, we sure hope they didn't throw the puppy in and turn on the camera.