This is Gu, who is from a shelter in New Mexico and is around 5 years old. He is a dog therapist, and has a caseload of 10ish dogs who come over to hang out because he calms them down. He has logged thousands of miles on trails, and has played long games of tag with ravens, squirrels, and coyotes. As a dog who grew up in the desert, he is absolutely obsessed with running water. #petintelligence #dogsofmastodon #dogstodon