Human evolution is the evolutionary process within the history of primates that led to the emergence of Homo sapiens as a distinct species of the hominid family that includes all the great apes. This process involved the gradual development of traits such as human bipedalism, dexterity, and complex language, as well as interbreeding with other hominins, indicating that human evolution was not linear but weblike. The study of the origins of humans involves several scientific disciplines, including physical and evolutionary anthropology, paleontology, and genetics; the field is also known by the terms anthropogeny, anthropogenesis, and anthropogony.
The Olduvai Gorge or Oldupai Gorge in Tanzania is one of the most important paleoanthropological localities in the world; the many sites exposed by the gorge have proven invaluable in furthering understanding of early human evolution. A steep-sided ravine in the Great Rift Valley that stretches across East Africa, it is about 48 km long, and is located in the eastern Serengeti Plains within the Ngorongoro Conservation Area in the Olbalbal ward located in Ngorongoro District of Arusha Region, about 45 kilometres from Laetoli, another important archaeological locality of early human occupation. The British/Kenyan paleoanthropologist-archeologist team of Mary and Louis Leakey established excavation and research programs at Olduvai Gorge that achieved great advances in human knowledge. The site is registered as one of the National Historic Sites of Tanzania.
The Oldowan was a widespread stone tool archaeological industry (style) in prehistory. These early tools were simple, usually made by chipping one, or a few, flakes off a stone using another stone. Oldowan tools were used during the Lower Paleolithic period, 2.9 million years ago up until at least 1.7 million years ago (Ma), by ancient Hominins across much of Africa. This technological industry was followed by the more sophisticated Acheulean industry.
The Lower Paleolithic is the earliest subdivision of the Paleolithic or Old Stone Age. It spans the time from around 3.3 million years ago when the first evidence for stone tool production and use by hominins appears in the current archaeological record, until around 300,000 years ago, spanning the Oldowan and Acheulean lithics industries.
Homo antecessor is an extinct species of archaic human recorded in the Spanish Sierra de Atapuerca, a productive archaeological site, from 1.2 to 0.8 million years ago during the Early Pleistocene. Populations of this species may have been present elsewhere in Western Europe, and were among the first to settle that region of the world, hence the name. The first fossils were found in the Gran Dolina cave in 1994, and the species was formally described in 1997 as the last common ancestor of modern humans and Neanderthals, supplanting the more conventional H. heidelbergensis in this position. H. antecessor has since been reinterpreted as an offshoot from the modern human line, although probably one branching off just before the modern human/Neanderthal split.
Australopithecus garhi is a species of australopithecine from the Bouri Formation in the Afar Region of Ethiopia 2.6–2.5 million years ago (mya) during the Early Pleistocene. The first remains were described in 1999 based on several skeletal elements uncovered in the three years preceding. A. garhi was originally considered to have been a direct ancestor to Homo and the human line, but is now thought to have been an offshoot. Like other australopithecines, A. garhi had a brain volume of 450 cc (27 cu in); a jaw which jutted out (prognathism); relatively large molars and premolars; adaptations for both walking on two legs (bipedalism) and grasping while climbing (arboreality); and it is possible that, though unclear if, males were larger than females. One individual, presumed female based on size, may have been 140 cm tall.
Megantereon is an extinct genus of prehistoric machairodontine saber-toothed cat that lived in North America, Eurasia, and Africa from the late Pliocene to the Middle Pleistocene. It is a member of the tribe Smilodontini, and closely related to and possibly the ancestor of the famous American sabertooth Smilodon. In comparison to Smilodon it was somewhat smaller, around the size of a jaguar, though it is thought to have had a similar hunting strategy as an ambush predator.
Yuanmou Man is a subspecies of H. erectus which inhabited the Yuanmou Basin in Yunnan Province, southwestern China, roughly 1.7 million years ago. It is the first fossil evidence of humans in China, though they probably reached the region by at least 2 million years ago. Yuanmou Man is known only from two upper first incisors presumed to have belonged to a male, and a partial tibia presumed to have belonged to a female. The female may have stood about 123.6–130.4 cm in life. These remains are anatomically quite similar to those contemporary early Homo in Africa, namely H. habilis and H. (e?) ergaster.
Mammuthus meridionalis, sometimes called the southern mammoth, is an extinct species of mammoth native to Eurasia, including Europe, during the Early Pleistocene, living from around 2.5 million years ago to 800,000 years ago.
Hippopotamus antiquus is an extinct species of the genus Hippopotamus that ranged across Europe during the Early and Middle Pleistocene. It was considerably larger than the living hippopotamus.
The evolution of the horse, a mammal of the family Equidae, occurred over a geologic time scale of 50 million years, transforming the small, dog-sized, forest-dwelling Eohippus into the modern horse. Paleozoologists have been able to piece together a more complete outline of the evolutionary lineage of the modern horse than of any other animal. Much of this evolution took place in North America, where horses originated but became extinct about 10,000 years ago, before being reintroduced in the 15th century.
Paleolithic Europe, or Old Stone Age Europe, encompasses the Paleolithic or Old Stone Age in Europe from the arrival of the first archaic humans, about 1.4 million years ago until the beginning of the Mesolithic around 10,000 years ago. This period thus covers over 99% of the total human presence on the European continent. The early arrival and disappearance of Homo erectus and Homo heidelbergensis, the appearance, complete evolution and eventual demise of Homo neanderthalensis and the immigration and successful settlement of Homo sapiens all have taken place during the European Paleolithic.
The Drimolen Palaeocave System consists of a series of terminal Pliocene to early Pleistocene hominin-bearing palaeocave fills located around 40 kilometres (25 mi) north of Johannesburg, South Africa, and about 6 kilometres (3.7 mi) north of Sterkfontein in the UNESCO World Heritage Site Cradle of Humankind.
Grotte du Vallonnet is an archaeological site located near Roquebrune-Cap-Martin, between Monaco and Menton, in France, that was first discovered in 1958. Stone tools found at the site have been dated to between 1 and 1.05 million years old, making it one of the earliest sites of human settlement known in Europe.
Several expansions of populations of archaic humans out of Africa and throughout Eurasia took place in the course of the Lower Paleolithic, and into the beginning Middle Paleolithic, between about 2.1 million and 0.2 million years ago (Ma). These expansions are collectively known as Out of Africa I, in contrast to the expansion of Homo sapiens (anatomically modern humans) into Eurasia, which may have begun shortly after 0.2 million years ago.
Hemibos is an extinct even-toed ungulate, belonging to the family Bovidae. Its fossil remains were found across Asia and Europe, including findings from China, the Italian Peninsula, the Iberian Peninsula, the State of Palestine, Israel, Pakistan, and India.
Shangchen is a Lower Palaeolithic archaeological site in Lantian County, Shaanxi, China, some 25 km south of Weinan. It was discovered in 1964, and excavated during 2004 and 2017.
The archaeological site of Atapuerca is located in the province of Burgos in the north of Spain and is notable for its evidence of early human occupation. Bone fragments from around 800,000 years ago, found in its Gran Dolina cavern, provide the oldest known evidence of hominid settlement in Western Europe and of hominid cannibalism anywhere in the world.
Barranco León is an archaeological site in Orce, Andalusia, Spain with an age range between 1.2 and 1.4 million of years. It is noted for having yielded evidence of hominin occupation, including the milk tooth of a boy or girl of 10 years. After the tooth had been dated, its original owner was hailed as having left the earliest anatomical evidence for humans in Western Europe.
The Orce Man, Orce Donkey, or Venta Micena fossil is a fossil cranium fragment that was historically considered an infantile early European member of Homo. However, recent descriptions suggest that it is a member of the species Equus altidens.
