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Nuclear war is an often-predicted cause of the extinction of humankind. [1]Human extinction or omnicide is the hypothetical end of the human species, either by population decline due to extraneous natural causes, such as an asteroid impact or large-scale volcanism, or via anthropogenic destruction (self-extinction).
Map emphasising the Ebro River in northern Spain. The extinction of Neanderthals was part of the broader Late Pleistocene megafaunal extinction event. [1] Whatever the cause of their extinction, Neanderthals were replaced by modern humans, indicated by near full replacement of Middle Palaeolithic Mousterian stone technology with modern human Upper Palaeolithic Aurignacian stone technology ...
Aside from competition with modern humans, Neanderthal extinction has also been ascribed to their low population as well as the resulting mutational meltdown, making them less adaptable to major environmental changes (specifically Heinrich event 4) or new diseases.
[82] [83] This is supported by a date of 50,000–60,000 years ago for the oldest evidence of settlement in Australia, [71] [84] around 40,000 years ago for the oldest human remains, [71] the earliest humans artifacts which are at least 65,000 years old [85] and the extinction of the Australian megafauna by humans between 46,000 and 15,000 ...
The Tibetan Plateau has more snow and ice than anywhere on Earth except the north and south poles, experts said.
[47] [48] Brain expansion (enlargement) between 0.8 and 0.2 Ma may have occurred due to the extinction of most African megafauna (which made humans feed from smaller prey and plants, which required greater intelligence due to greater speed of the former and uncertainty about whether the latter were poisonous or not), extreme climate variability ...
How did cockroaches survive the asteroid that led to the extinction of dinosaurs? – Kinjal, age 11, Delhi, India When the rock now known as the Chicx.
This has variously been explained as: retention of a hypothetically tall ancestral condition; higher-quality diet and nutrition due to the hunting of megafauna which later became uncommon or extinct; functional adaptation to increase stride length and movement efficiency while running during a hunt; increasing territorialism among later Cro ...