A tweet showing a picture of a high school student’s service dog alongside him in the school's yearbook is going viral.

According to Buzzfeed, Andrew Schalk, who goes by AJ, has had Alpha for three years. Schalk is diabetic, and Alpha alerts Schalk when his blood sugar drops.

"The amazing thing about Alpha is that he knows 20 to 40 minutes before my blood sugar actually does go low or high due to his amazing sense of smell," Schalk told Buzzfeed.

Yearbook editor Grace Fuller thought Alpha was enough of a presence at the school that he deserved a place of honor in the student section, right next to AJ.

Alpha even has his own student ID: