> The only permanent bipeds of the animal kingdom alongside humans
Kangaroos?
replies(3):
Kangaroos?
Also, I see both of my dogs standing on 2 legs every day, often walking short distances like that. According to wikipedia this only happens when they are trained to do it (?!) but we never trained them and they've been doing it since a few months old. Maybe I should update https://en.wikipedia.org/wiki/Bipedalism to indicate training may not be required for temporary bipedal behavior in some dogs.