The video shows twin sisters Mayeli Saldana and Nayeli Saldana very excitedly jumping for joy and their dog, Fisher a Golden Retriever, giving them a hug in congratulating them. Or is he? To me this is a case of a dog being caught up the noise and excitement. Fox calls the dog supportive. I am sure he is but I don’t believe that this is an example of the dog’s support.
It may even be more basic than that. The girls are behaving in a way which is suggestive of a greeting after being away for a while. The dog responds by doing what he does when he greets the girls. He jumps up onto his hind legs. I think this is more about dog conditioning and routines and meeting expectations rather than a rational, conscious effort by Fisher to greet and hug the girls because they gained scholarships to uni.