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Humans ( Homo sapiens) or modern humans are the most common and widespread species of primate, and the last surviving species of the genus Homo. They are great apes characterized by their hairlessness, bipedalism, and high intelligence.
4 days ago · The human body is the physical substance of the human organism. Characteristic of the vertebrate form, the human body has an internal skeleton with a backbone, and, as with the mammalian form, it has hair and mammary glands. Learn more about the composition, form, and physical adaptations of the human body.
- The Editors of Encyclopaedia Britannica
- Chemically, the human body consists mainly of water and organic compounds—i.e., lipids, proteins, carbohydrates, and nucleic acids. The human body...
- The four main types of tissue in the human body are epithelial, muscle, nerve, and connective.
- The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory sy...
May 19, 2024 · Human being, a culture-bearing primate classified in the genus Homo, especially the species H. sapiens. Human beings are anatomically similar and related to the great apes but are distinguished by a more highly developed brain and a resultant capacity for articulate speech and abstract reasoning.
- The Editors of Encyclopaedia Britannica
4 days ago · Homo sapiens, the species to which all modern human beings belong and the only member of the genus Homo that is not extinct. The name ‘Homo sapiens’ was applied in 1758 by the father of modern biological classification, Carolus Linnaeus. The earliest fossils of the species date to about 315 thousand years ago.
- Brian Handwerk
- 550,000 to 750,000 Years Ago: The Beginning of the Homo sapiens Lineage. Genes, rather than fossils, can help us chart the migrations, movements and evolution of our own species—and those we descended from or interbred with over the ages.
- 300,000 Years Ago: Fossils Found of Oldest Homo sapiens. As the physical remains of actual ancient people, fossils tell us most about what they were like in life.
- 300,000 Years Ago: Artifacts Show a Revolution in Tools. Our ancestors used stone tools as long as 3.3 million years ago and by 1.75 million years ago they’d adopted the Acheulean culture, a suite of chunky handaxes and other cutting implements that remained in vogue for nearly 1.5 million years.
- 100,000 to 210,000 Years Ago: Fossils Show Homo sapiens Lived Outside of Africa. Many genetic analyses tracing our roots back to Africa make it clear that Homo sapiens originated on that continent.
Get introduced to the major organ systems of the human body! You’ll learn some general anatomy (a roadmap of your body), learn how the arm bone actually connects to the shoulder bone, and how the different organs work together to keep you alive.
Jan 3, 2024 · Home. Human Evolution Evidence. Human Fossils. Species. Homo sapiens. Where Lived: Evolved in Africa, now worldwide. When Lived: About 300,000 years ago to present. Overview: The species that you and all other living human beings on this planet belong to is Homo sapiens.
