نتایج جستجو برای: prehistoric
تعداد نتایج: 3377 فیلتر نتایج به سال:
The classical hypothesis proposes that Chagas disease has been originated in the Andean region among prehistoric people when they started domesticating animals, changing to sedentary habits, and adopting agriculture. These changes in their way of life happened nearly 6,000 years ago. However, paleoparasitological data based on molecular tools showed that Trypanosoma cruzi infection and Chagas d...
From prehistoric times, man has felt the urge to depict the surrounding world on various substrates by using coloured materials. Historical paintings, such as prehistoric cave paintings, are often called ‘windows on the past’ and have allowed later generations to imagine how former human societies looked and/or functioned. Historical paintings are, therefore, considered to be a very valuable pa...
Whether man is predisposed to lethal violence, ranging from homicide to warfare, and how that may have impacted human evolution, are among the most controversial topics of debate on human evolution. Although recent studies on the evolution of warfare have been based on various archaeological and ethnographic data, they have reported mixed results: it is unclear whether or not warfare among preh...
Prehistoric environmental change in Hawai'i is evaluated through the analysis of sedi-ment and pollen samples from dated cores and excavation profiles in the coastal low-lands of O'ahu. It is suggested that a lowland Pritchardia palm forest and associatedspecies underwent rapid decline starting between about A.D. 1000 to 1200. This de-cline seems to have occurred earlier in coas...
Understanding extinction drivers in a human-dominated world is necessary to preserve biodiversity. We provide an overview of Quaternary extinctions and compare mammalian extinction events on continents and islands after human arrival in system-specific prehistoric and historic contexts. We highlight the role of body size and life-history traits in these extinctions. We find a significant size-b...
Although previous paleopathological studies have used disturbances in enamel formation as indicators of childhood stress, the full potential of this technique has not been realized. This paper presents a test case which demonstrates that the frequency of disturbed enamel formation (i.e., Wilson bands) is associated with other stress indicators (i.e., probability of dying and infectious lesions)...
Holocene fossils document the extinction of hundreds of bird species on Pacific islands during prehistoric human occupation. Human hunting is implicated in these extinctions, but the impact of hunting is difficult to disentangle from the effects of other changes induced by humans, including habitat destruction and the introduction of other mammalian predators. Here, we use data from bones colle...
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