Modern human beings are the only remaining extant species of the genus Homo. They are identified by the highly developed brain and cranial capacity of 1,000–1,850 cc. They are characterized by their sapience, skills in abstract reasoning, more complex language, self-awareness, capability of problem solving, and behavioral modernity. They are bipedal and skillful in handling objects with their hands. They are also identified as social animals capable of showing sympathy with other beings.