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Human impact on megafauna populations is thought to have been driven by hunting ("overkill"), [4] [5] as well as possibly environmental alteration. [6] The relative importance of human vs climatic factors in the extinctions has been the subject of long-running controversy. [3]
New evidence based on accurate optically stimulated luminescence and uranium-thorium dating of megafaunal remains suggests that humans were the ultimate cause of the extinction for some of the megafauna in Australia. [5] [6] The dates derived show that all forms of megafauna on the Australian mainland became extinct in the same rapid timeframe ...
Due to the evidence that Paleoindians hunted now extinct megafauna (large animals), and that following a period of overlap, most large animals across the Americas became extinct as part of the Late Pleistocene megafauna extinctions, it has been argued by many authors that hunting by Paleoindians was an important factor in the extinctions, [90 ...
This is a list of dates associated with the prehistoric peopling of the world (first known presence of Homo sapiens). The list is divided into four categories, Middle Paleolithic (before 50,000 years ago), Upper Paleolithic (50,000 to 12,500 years ago), Holocene (12,500 to 500 years ago) and Modern ( Age of Sail and modern exploration).
Hunting, competition with, and changes to vegetation caused by livestock. [111] 1046-1380 [15] Nēnē-nui: Branta hylobadistes: Oahu, Hawaii, United States Probably hunting or introduced predators. [71] 1047-1280 [73] Edwards' baboon lemur: Archaeolemur edwardsi: Central Madagascar [145] Hunting and changes to vegetation caused by livestock ...
Today, the term “Big Five” refers to the beauty and power of some of Africa’s most iconic animals. However, it has a much darker history. Trophy hunters in the 19th century considered ...
Megafauna also play a role in regulating and stabilizing the abundance of smaller animals. During the Pleistocene, megafauna were diverse across the globe, with most continental ecosystems exhibiting similar or greater species richness in megafauna as compared to ecosystems in Africa today.
Image credits: National Geographic #5. The 'Spanish Flu' actually likely got its start in Kansas, USA. It's only called the Spanish Flu because most countries involved in WWI had a near-universal ...