"There is a physiological response to canine content," says Dr. Lena Farrow, a media psychologist. "When a user sees a dog's face, oxytocin releases faster than it does for human faces. Platforms realized that showing a 'sad-eyed Beagle' or a 'victory zoomie' keeps users on the app 40% longer than political news."
Creators now use voiceovers (the "doggo-speak" phenomenon) to give pets hilarious, human-like inner monologues.