Plus #1 has a human analogue: Human's are known to thumb suck for comfort. Some continuing the behaviour into adulthood - perhaps even 1 in 10, but I don't real

Plus #1 has a human analogue: Human's are known to thumb suck for comfort. Some continuing the behaviour into adulthood - perhaps even 1 in 10, but I don't really believe that.(1) (1) https://www.sundaypost.com/fp/an-adults-habit-that-really-sucks/ https://www.sundaypost.com/fp/an-adults-habit-that-really-su...