Brain Roots on Instagram: "This short clip shows a fluffy white puppy excitedly interacting with a woman during what appears to be an adoption moment. As the pup wiggles closer, his eyes water and soft snorting sounds slip out-creating the impression that he’s crying with relief as he leans into the attention. The emotion feels immediate and contagious. Some viewers connected the moment to research suggesting dogs can produce more tears during emotionally charged reunions, possibly linked to oxy