Humans are bipedal primates. They are typically characterized by their advanced brain and cognitive abilities, with complex social structures and cultures. Physically, humans have larger brains than other primates, with larger skulls and smaller facial features. Their bodies are generally hairless, with a few exceptions, such as the scalp, armpits, and pubic region. Other defining features include long limbs, opposable thumbs, and a prominent frontal lobe. Overall, humans are highly adaptable and versatile, making them an apex predator in many environments.