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The universal tetrapod characteristics of front limbs that bend backward at the elbow and hind limbs that bend forward at the knee can plausibly be traced to early tetrapods living in shallow water. [18] Panderichthys is a 90–130 cm (35–50 in) long fish from the Late Devonian period (380 Mya). It has a large tetrapod-like head.
Human history is the record of humankind from prehistory to the present. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers.They migrated out of Africa during the Last Ice Age and had spread across Earth's continental land except Antarctica by the end of the Ice Age 12,000 years ago.
The great apes (Hominidae) show some cognitive and empathic abilities. Chimpanzees can make tools and use them to acquire foods and for social displays; they have mildly complex hunting strategies requiring cooperation, influence and rank; they are status conscious, manipulative and capable of deception; they can learn to use symbols and understand aspects of human language including some ...
The hominoids are descendants of a common ancestor.. Homo sapiens is a distinct species of the hominid family of primates, which also includes all the great apes. [1] Over their evolutionary history, humans gradually developed traits such as bipedalism, dexterity, and complex language, [2] as well as interbreeding with other hominins (a tribe of the African hominid subfamily), [3] indicating ...
[75] [76] Homo erectus had crossed the Lombok gap reaching as far as Flores, but never made it to Australia. [ 77 ] The map shows the probable extent of land and water at the time of the last glacial maximum , 20,000 yrs ago and when the sea level was probably more than 110m lower than today.
It is speculated that over many iterations, such an AI would far surpass human cognitive abilities. I. J. Good speculated that superhuman intelligence might bring about an intelligence explosion: [20] [21] Let an ultraintelligent machine be defined as a machine that can far surpass all the intellectual activities of any man however clever.
This is an accepted version of this page This is the latest accepted revision, reviewed on 26 January 2025. Scientific projections regarding the far future Several terms redirect here. For other uses, see List of numbers and List of years. Artist's concept of the Earth 5–7.5 billion years from now, when the Sun has become a red giant While the future cannot be predicted with certainty ...
Neolithic remains of some buildings can be observed at the site. [102] [103] 8500 BC: Earliest supposed date for the domestication of cattle. [104] 8000 BC: Earliest dates suggested for the domestication of the goat. [105] 8000 BC: The Quaternary extinction event, which has been ongoing since the mid-Pleistocene, concludes.