This is Delta. She is a Chinese Shar-pei who has served as a work dog all of her life. This is in the companionship sense only, as she does not have to actually do any work. She spends her days sunning in front of the studio door and guarding it or lying inside the studio and jumping up to bark if anyone approaches.
Here, Delta is looking up in a questioning way after her name was called to find out what she needs to do.
Dale and Brin thank Delta for being such a good companion and always being willing to "go to work." Delta jumps up at hearing the phrase "let's go to work" and heads to the back door ready to go.