Hominoid
Imagine trying to balance a stack of books as you carry them from one room to another. Just as you use your body to stabilize and shift your weight to keep the books from toppling, primates like orangutans, gorillas, chimpanzees, and humans have evolved to walk on two legs, constantly adjusting their posture to maintain balance. In both scenarios, the key is the ability to balance effectively; for humans and other bipedal primates, this involves adjustments in body mechanics to stay upright, much like you adjusting your grip and stance to keep the books from falling.
Practice Version
Hominoid: Primates that can walk on two legs, like orangutans, gorillas, chimpanzees, and humans. Hominoids are a group of primates that include all apes and humans, characterized by their lack of tails and ability to walk upright.