Txhawm rau saib xyuas lawv cov tsiaj kom yooj yim dua, Cov tswv tsiaj feem ntau xaiv los yuav cov cuab yeej ntse, xws li tsis siv neeg feeders thiab ntse dej dispensers. Txawm li cas los, cov khoom siv no qhia txog qhov tsis zoo: they cannot accurately identify each pet’s identity, making it impossible to ensure that every pet receives the appropriate amount of food. During feeding, pets may compete for food. …